Chapter 8: International Relations and the Environment
In the middle of the 1960s, a team of scientists working in Antarctica did something that sounds ordinary and turned out to be startling. They analysed tissue samples from Adélie penguins and a seal, looking for traces of pesticide. Antarctica has no farms. It has no orchards, no cotton fields, no insects worth spraying, and at that time it had no permanent human population beyond a few research stations. There was no reason for a pesticide to be there at all.
The samples contained dichlorodiphenyltrichloroethane (DDT).
The nearest place it could have come from was thousands of kilometres away, across open ocean. Nobody had carried it south. It had travelled on air currents, in seawater, and through the food chain — from crop fields, into rivers, into plankton, into the small shrimp-like krill that Antarctic animals feed on, and finally into the bodies of birds that had never been anywhere near a farm.
That result changed the way governments thought about pollution. Until then, environmental damage was treated as a domestic matter: a country’s rivers, a country’s air, a country’s problem. The penguins made a different point. Air and water do not stop at customs. Neither do dust, pesticides, refrigerant gases or the demand for cheap timber. If a problem crosses borders, then no country can solve it alone — and the moment countries must act together, environmental science runs straight into politics, trade and law.
That is what this chapter is about.
Diagram
Fig. 8.0-1 – world map with broad arrows showing long-range transport of a persistent pollutant from mid-latitude agricultural regions towards the poles via atmospheric and ocean currents; inset food-chain arrows: plankton → krill → penguin, labelled to show increasing concentration along the chain
Keep these five questions in mind as you read. Each one is answered somewhere in this chapter.
8.1 The Transnational Nature of Environmental Problems
A political map is a useful thing. It tells you where one country’s laws end and another’s begin, where taxes change, where a passport is checked. It is also, from the point of view of the environment, a piece of fiction. Wind does not slow down at a border post. A river does not ask permission before it flows into the next country. A bird that nests in Siberia and winters in Gujarat belongs to no legal system at all.
This mismatch — between environments that are continuous and governments that are bounded — is the starting point of everything in this chapter.
Why some problems cross borders
Environmental problems become international for four broad reasons, and it is worth separating them, because each kind demands a different response.
The first is shared media. The atmosphere and the ocean are single, connected systems. A sulphur dioxide plume released from a tall chimney in one country can be deposited as acid rain hundreds of kilometres away in another. A gas released into the air anywhere eventually mixes through the whole atmosphere. This is transboundary pollution: pollution that originates within one country’s jurisdiction but produces its effects in another.
The second is shared resources that belong to no one. The deep ocean beyond national waters, the high-seas fisheries, the atmosphere itself, and Antarctica are not owned by any state. These are the global commons — resources that lie outside national jurisdiction and are, in principle, available to all. Because no one owns them, no one has a clear individual interest in protecting them, while everyone has an immediate interest in using them. A fishing fleet that restrains its catch simply leaves more fish for a fleet that does not.
The third is movement of organisms. Migratory birds, marine turtles, whales and river fish spend parts of their life cycle in several countries. Protecting such a species inside one country’s national park is worth very little if it is hunted or its wetlands are drained at the other end of its route.
The fourth is trade. This is the reason that will occupy most of this chapter. When a country imports timber, prawns, ore or cheap electronics, it is also, indirectly, importing the environmental damage caused by producing them — and exporting that damage to somewhere else. The forest is felled in one country; the furniture is bought in another. The waste is generated in one country; the dismantling yard is in another. Nothing physically crossed a border except a container, but the environmental consequence moved just as surely as a cloud of smoke.
Diagram
Fig. 8.1-1 – four labelled panels showing the four routes by which an environmental problem becomes international: (a) shared media — chimney plume drifting across a national boundary line; (b) global commons — fishing vessels of several flags on the open ocean; (c) migratory species — bird route crossing three countries; (d) trade — container ship carrying goods one way and waste the other; boundary lines drawn as dashed lines in every panel
Why distant places are not safe places
Two properties decide whether a pollutant stays local or becomes everybody’s problem: how long it survives, and whether living bodies hold on to it.
A substance that breaks down in a few hours cannot travel far. A substance that resists breakdown — a persistent one — stays intact long enough to be carried by winds and currents across oceans. Many older pesticides and industrial chemicals were designed precisely to be stable, because stability was a virtue in a product meant to keep working after it was applied. That same stability is what allowed them to reach places where they had never been used.
The second property is bioaccumulation: the build-up of a substance in the tissues of an organism, because the organism takes it in faster than it can break it down or excrete it. Fat-soluble chemicals are stored in body fat rather than flushed out. When a predator eats many contaminated prey animals over its lifetime, it accumulates the load of all of them. Concentrations that are almost unmeasurable in seawater can therefore become substantial in a seal or a large fish.
Local, transboundary and global — three different problems
Students often treat “environmental problem” as one category. For understanding international relations, it helps to separate three.
The third column contains the hardest cases. Where a benefit is shared by everyone whether or not they paid for it, each country has a reason to hope that others will act while it does not. This is the free rider problem, and it is the central difficulty in negotiating any global environmental treaty. A country that cuts its emissions bears the whole cost of doing so and receives only a fraction of the benefit, since the improved atmosphere is shared by all.
The instrument used for such problems is the multilateral environmental agreement — a treaty negotiated among many countries that sets out shared obligations, usually with a timetable, a reporting system and some mechanism for helping poorer members meet the targets. Such an agreement binds only those countries that ratify it, and there is no world police force to enforce it. What holds it together is a mixture of reputation, reciprocity, financial assistance and, occasionally, trade sanctions.
Sovereignty pulls the other way
There is a further complication, and it is not a technical one. Under international law, a country has sovereign rights over the natural resources inside its own borders. It decides what to mine, what to fell, what to dam. At the same time, a widely accepted principle of international environmental law holds that a country must not allow activities within its territory to cause damage to the environment of other states or of areas beyond national jurisdiction.
These two ideas are in permanent tension. When a rich country asks a poorer one to slow its logging for the sake of the global climate, the poorer country can reasonably reply that the rich country cleared its own forests long ago on the way to becoming rich. The argument is not settled by science; it is settled, if at all, by negotiation. Section 8.5 takes up this tension directly.
The three cases ahead
The syllabus examines the transnational character of environmental issues through three cases, and they have been chosen well, because each illustrates a different route.
Amazonia (section 8.2) is a case where the resource lies wholly inside national borders, but the consequences of losing it, and the demand driving its loss, are international. The ivory trade (section 8.3) is a case where the species is national but the market is foreign, so that regulating the market matters more than guarding the animal. Ozone depletion (section 8.4) is the clearest global case of all: gases released almost entirely by industrialised countries thinned a layer that protects the whole planet, and the damage appeared most severely over a continent that had emitted almost nothing.
8.2 Case Study: Amazonia
The Amazon basin holds the largest continuous tropical rainforest on Earth. It spans nine countries and territories — Brazil, Peru, Colombia, Bolivia, Ecuador, Venezuela, Guyana, Suriname and French Guiana — with by far the largest share in Brazil. Every part of it lies inside somebody’s national borders, which is exactly what makes it interesting for this chapter. Nothing about the Amazon is legally international. Almost everything about its fate is.
8.2.1 The Ecological Value of Tropical Rainforests
Tropical rainforests occupy only a small slice of the land surface — of the order of six to seven per cent — yet they are estimated to hold more than half of all terrestrial species. That single comparison is the reason biologists call them the cradles of biodiversity. A single large tree may support dozens of species of ant alone, each with a slightly different role in the system.
Their value is usually described under four heads.
They regulate climate. Rainforest trees absorb carbon dioxide during photosynthesis and store carbon in wood, roots and leaf litter. A forest that takes up more carbon than it releases is acting as a carbon sink. When the same forest is cut and burned, that stored carbon returns to the atmosphere within months, so a sink becomes a source.
They regulate water. A rainforest recycles rainfall: water absorbed by roots is returned to the air by transpiration, forms cloud downwind, and falls again. Removing a large area of forest therefore reduces rainfall not only over the cleared patch but over regions far beyond it, including agricultural land that depends on that moisture.
They hold biological information. A significant number of modern medicines were first isolated from rainforest plants, and several familiar crops — bananas, cacao, sugar cane among them — have wild relatives in tropical forests. These wild relatives carry genetic variation that plant breeders draw on when a cultivated crop meets a new disease.
They support the people who live in them. Forest-dwelling communities of the Amazon obtain food, fibre, building material, medicine and income from a standing forest. Their livelihoods depend on the forest remaining a forest, which gives them an economic interest that differs sharply from that of a logging contractor.
Together these are ecosystem services — the benefits people obtain from a functioning natural system, most of which are never bought or sold and therefore never appear in any price.
The surprise in the soil
Most people assume that a forest that lush must be growing on rich soil. The opposite is usually true, and this single fact explains a great deal about how deforestation proceeds.
In a temperate forest, a large share of the system’s nutrients sits in the soil, in a deep layer of slowly decomposing organic matter. In a tropical rainforest, decomposition is fast — warm, wet conditions break down fallen leaves within weeks — and the released nutrients are taken up almost immediately by shallow roots and fungi. The result is that most of the nutrient stock is held in the living vegetation, not in the ground beneath it.
The soil itself is usually old, deeply weathered, acidic and poor. Heavy rainfall causes leaching — the washing of soluble nutrients downwards out of the root zone by percolating water. Acidity further reduces the availability of the few nutrients present.
Diagram
Fig. 8.2-1 – two side-by-side vertical bar diagrams comparing where nutrients are stored: temperate forest (larger share in soil, smaller in biomass) and tropical rainforest (larger share in living biomass, smaller in soil); arrows on the rainforest panel showing rapid litter decomposition, immediate root uptake, and downward leaching losses
8.2.2 Causes of Exploitation of the Forests
Forest is not cleared out of carelessness. It is cleared because, for the person doing the clearing, it pays. The causes are best grouped by who benefits.
Timber. Loggers extract the few commercially valuable species. Because the trees of a rainforest are bound together by climbers and interlocking crowns, removing one large tree damages many others around it. The stand that is left is degraded, more open, drier and far more likely to burn.
Cattle ranching. Cleared and burnt land is converted to pasture. Beef is exportable, pasture is cheap to establish, and cattle need little labour per hectare — an important consideration in a region where labour is scarce and distances are large.
Commercial cropping. Large areas have been converted to crops grown mainly for export, soybean being the most important. Demand does not come from the forest country at all; it comes from importers elsewhere buying animal feed and food ingredients.
Smallholder farming. Families with little or no land clear a patch, farm it while it yields, and move on when it stops yielding. This is not the same activity as ranching or plantation agriculture, and it is worth being precise about it: the area cleared per family is small, and the underlying cause is landlessness rather than any attitude towards forests.
Mining and infrastructure. Mines, hydroelectric reservoirs, transmission lines and above all roads open the forest physically. Roads matter more than their own footprint suggests, because they change what is economically possible: land that could not previously be reached at a profit suddenly can be.
Distant consumption. Behind each of these is a buyer. The timber, beef, soy and ore leave the region. Consumers in importing countries pay a price that reflects extraction and transport, but not the value of the ecosystem services lost. This is the transnational element in a case that is otherwise entirely domestic.
8.2.3 Reasons for the Acceleration of Deforestation
The causes above have existed for decades. What makes deforestation accelerate is that they connect into a self-reinforcing sequence.
A road is built. Logging becomes profitable along it, so loggers move in and remove the best timber. The degraded remainder is burnt and converted to pasture, which yields well at first. After a few years, pasture productivity falls as fertility declines and weeds establish, so the land is sold cheaply to smallholders seeking subsistence. Their yields decline too, and they move to the frontier — where a new road is being built. Each stage lowers the cost of the next.
Diagram
Fig. 8.2-2 – flow: new road opens access → selective logging of valuable timber → residual forest degraded and dries out → burning and conversion to cattle pasture → pasture productivity declines within a few years → land sold cheaply to smallholders → land abandoned as fertility fails → clearing advances to the next stretch of road
Three further factors speed the cycle. Fire is one: a logged, drier forest burns far more readily than an intact one, and a fire lit to clear pasture can escape into standing forest. Commodity prices are a second: when world prices for beef or soy rise, the profit from converting one more hectare rises with them. Weak enforcement is the third — where a boundary is unmarked, a fine is small, or an inspector is far away, illegal clearing carries little risk.
8.2.4 Effects of Government Policies
Public policy has pushed in both directions in this case, and the honest account includes both.
For much of the twentieth century, policy encouraged clearing, usually without intending deforestation as such. Settlement programmes moved landless families into the interior to relieve land pressure elsewhere. Land tenure rules commonly recognised “productive use” as the basis of a claim, and clearing forest was the simplest way to demonstrate productive use — which turned deforestation into a method of acquiring legal title. Subsidised credit made cattle ranching viable on land where it would not otherwise have paid. Large infrastructure projects, several of them financed by international lending institutions, cut roads and built dams deep into the basin.
Notice the pattern: none of these policies had deforestation as its objective. Each had a defensible domestic aim — settling landless families, developing a remote region, generating export earnings. The forest loss was a side effect that the policy design did not price.
From the mid-2000s, Brazilian policy changed direction substantially. The network of protected areas and recognised indigenous territories was expanded until it covered a large share of the Brazilian Amazon, and legal recognition of collective land rights gave resident communities both the standing and the incentive to resist encroachment. Satellite monitoring by the national space research institute made it possible to detect clearing while it was happening rather than years later, and enforcement was directed at the locations the images identified. Credit was made conditional on compliance with forest law, which attacked the economics of illegal clearing rather than only its legality.
The measurable result was a steep fall in the annual area cleared in the Brazilian Amazon between the mid-2000s and the early 2010s, achieved during a period in which agricultural output continued to grow. That combination matters, because it undercuts the assumption that forest protection and farm output must trade off directly against each other.
The fall was not permanent. Annual clearance rose again in later years as commodity prices, enforcement intensity and political priorities shifted. The lesson usually drawn is that a decline produced by enforcement and monitoring can be reversed as quickly as it was achieved, because it depends on sustained administrative effort rather than on any permanent change in the underlying incentives.
Diagram
Fig. 8.2-3 – line graph of annual deforested area in the Brazilian Amazon; x-axis year (from about 1990 to the most recent year available), y-axis area cleared per year in km²/year; illustrator to plot published figures from the official national satellite monitoring programme, marking the high plateau to the mid-2000s, the steep decline to the early 2010s, and the partial rise thereafter
8.2.5 Possible Solutions to the Problem
No single measure addresses a problem with this many drivers. The approaches that have been tried fall into four groups.
Protection and tenure. Creating protected areas is necessary but not sufficient; a park that exists only on paper protects nothing. What has worked better is protection combined with secure, legally recognised land rights for the communities already living there, backed by the state when outsiders encroach. Where residents hold enforceable rights, they have both the reason and the standing to keep the forest standing.
Monitoring and enforcement. Satellite imagery has changed what is administratively possible. Clearing of even a few hectares can be detected, located and acted upon within weeks. Enforcement then works on the economics: seizing illegally cut timber, refusing subsidised credit, and prosecuting large operators makes illegal clearing less profitable rather than merely illegal.
Market and supply-chain measures. Buyers can refuse to purchase commodities produced on recently cleared land. Agreements of this kind — under which traders undertake not to buy soy or cattle from newly deforested areas — have measurably shifted production onto already-cleared land. Certification schemes such as the Forest Stewardship Council perform a related function, allowing a buyer to identify timber produced under agreed standards. The limitation of all such schemes is leakage: a producer excluded by one buyer may simply sell to a buyer who does not ask.
International payment. If a forest provides services to the whole world — carbon storage, rainfall regulation, biodiversity — while the costs of protecting it fall on one country, then payment from the beneficiaries to the holder is a logical response.
8.3 Case Study: Trade in Wildlife — Ivory in Africa
Amazonia showed a resource that stands inside national borders while the demand for it comes from outside. The ivory trade shows the same structure in a sharper form. An elephant lives in one country. The tusks are carved and sold in another, often on a different continent. Between the two lies a chain of traders, transporters, ports and middlemen crossing several jurisdictions.
This shape matters for policy. A country can post guards around its elephants and still lose them, because the reward for killing one is set in a market it does not control. Wildlife trade is therefore one of the clearest cases where protecting a species inside a national park is not enough, and where the effective instrument has turned out to be an international agreement about trade rather than a national law about hunting.
What ivory is, and why that is the whole problem
Elephant tusks are enormously enlarged incisor teeth. About a third of a tusk lies embedded in the skull and contains living tissue and nerve. This single anatomical fact governs everything else in the case.
The African savannah elephant (Loxodonta africana) and the African forest elephant (Loxodonta cyclotis) both carry tusks in males and females. In the Asian elephant (Elephas maximus), significant tusks are carried only by some males. This is one reason African elephants have borne the heavier commercial pressure: a far larger proportion of the population is worth killing.
8.3.1 Reasons for the Flourishing Ivory Trade in the Past
An old and prestigious material
Ivory has been worked for thousands of years. It is dense, fine-grained, easy to carve in detail and takes a high polish, and no manufactured material quite reproduces its appearance and feel. It has been used for religious and decorative carvings, jewellery, personal name seals, inlay work, piano keys and billiard balls. Because it was scarce and expensive, it also carried social meaning: owning worked ivory signalled status. Demand of this kind is not easily argued away, because it is not about the material’s usefulness.
Very high value for very little weight
A commodity that is worth a great deal per kilogram and is easy to conceal is almost designed for smuggling. Tusks can be moved in ordinary cargo, mislabelled, split and reassembled. Enforcement against such a commodity is expensive and uncertain, while the profit from a single successful shipment is large.
A history of commercial hunting
Large-scale organised hunting for export, much of it during the colonial period, removed very large numbers of elephants over the nineteenth and early twentieth centuries and established the trade routes, the carving centres and the consumer markets that persisted afterwards. The infrastructure of the trade outlived the era that built it.
The economics on the ground
Where rural incomes are low and an elephant is worth many years of earnings, the incentive to kill one is powerful. Poaching — the illegal killing or capture of wild animals — is rarely the work of the person who fires the shot alone; that person is usually the least-paid link in an organised chain. Weak enforcement in vast, thinly patrolled areas makes the expected penalty small. Where wildlife authorities are underfunded, the arithmetic favours the poacher.
Legal trade as cover
For as long as some ivory could be sold lawfully, illegally obtained ivory could be passed off as legal. Once a tusk has been carved, its origin is difficult to establish without laboratory analysis. A partly legal market therefore provides laundering opportunities for an illegal one — a problem that recurs across wildlife, timber and fisheries.
Elephants recover slowly
Even without any of the above, elephants would be vulnerable, because their biology gives them almost no capacity for rapid replacement.
Diagram
Fig. 8.3-1 – line graph of estimated African elephant numbers against time; x-axis years from 1970 to the present, y-axis estimated population in thousands; steep decline through the 1970s and 1980s, a vertical dashed line marked “international commercial ivory trade banned, 1989” followed by a period of stabilisation and partial recovery, and a renewed decline marked for the late 2000s; note on the figure that estimates are uncertain and vary between surveys
Widely cited estimates place African elephant numbers well above a million in the late 1970s and roughly half that a decade later. All such figures are estimates from surveys of varying quality, and they should be read as indicating the scale and direction of change rather than as exact counts.
8.3.2 Steps Taken to Curb the Trade
The international agreement
The central instrument is the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), agreed in 1973 and in force from 1975. It works by regulating international trade rather than by regulating hunting, which remains a national matter.
In 1989 the African elephant was moved to Appendix I, and the international commercial ivory trade was closed from January 1990. This was the decisive step, and it worked because it acted on the demand side of the chain rather than only on the supply side.
Enforcement and monitoring
A listing is a piece of paper until somebody enforces it. Range states expanded anti-poaching patrols, and importing and transit countries increased customs inspection and seizure of shipments. CITES also established systematic monitoring so that arguments about trade policy could be settled against evidence: one programme records levels of illegal elephant killing at designated sites, and another compiles data on seizures of ivory worldwide.
Closing domestic markets
An international ban does not by itself close a market inside a country. Several major consumer and transit countries have therefore closed or sharply restricted their domestic ivory markets, the most significant being China’s closure of its legal domestic trade at the end of 2017. Since a domestic market provides both demand and a laundering route, these closures matter as much as the border controls.
Destroying stockpiles
Some governments have publicly burnt or crushed confiscated ivory rather than storing or selling it. Kenya’s burning of a stockpile in 1989 was the first prominent instance, and several larger destructions have followed. The purpose is partly to remove the ivory from any possibility of re-entering the market and partly to signal that the material has no legitimate value. Critics point out that destroying a stock reduces supply and may raise the price, and that the value of the signal is hard to measure.
Reducing demand
Because the trade is ultimately driven by buyers, campaigns in consumer countries have worked to make ivory socially unacceptable rather than merely illegal. Where such campaigns have coincided with market closures, reported demand has fallen.
Giving communities a stake
A different approach starts from the people who live alongside elephants. Elephants raid crops, damage stored grain and occasionally kill people; a household that suffers this has no reason to protect them and every reason to tolerate poachers. Community-based conservation programmes — Zimbabwe’s CAMPFIRE scheme is the best-known example — direct part of the revenue from wildlife to the local communities that bear these costs, on the argument that conservation must pay its way locally or it will not last.
Diagram
Fig. 8.3-2 – flow: elephant killed in range state → tusks moved to a local trader → consolidated for export → shipped through a transit port → carving workshop in a consumer country → retail sale to buyer; points of intervention marked below the relevant arrows: anti-poaching patrol, seizure of consignment, customs inspection at port, closure of domestic market, demand-reduction campaign
8.3.3 Consequences of the Ban on Trade
What the ban achieved
In the years immediately after 1990, reported poaching in much of eastern Africa fell sharply, ivory prices fell, and several elephant populations stabilised or began to recover. This is a genuine result and worth stating plainly: a trade instrument, applied at the point of demand, changed outcomes on the ground in countries thousands of kilometres away.
Where the argument begins
The ban has been contested since the day it was agreed, and the disagreement is not between conservationists and their opponents. It is between two conservation positions, both of which have evidence behind them.
Several southern African countries entered the 1989 decision with elephant populations that were stable or growing, in some places to the point where elephants were damaging habitat and farmland. Their argument was that a blanket prohibition punished successful management, removed a legitimate source of revenue for wildlife departments and local communities, and reduced the incentive for a country to maintain elephants at all. Some of these populations were subsequently placed in Appendix II, and two tightly conditioned one-off sales of government-held stockpiles were permitted, in 1999 and in 2008.
The opposing position holds that any legal sale reopens a laundering channel and signals to consumers that ivory is once again an acceptable purchase, and that enforcement capacity across all range states is too uneven for a controlled trade to be policed. Whether the one-off sales contributed to the surge in poaching that followed from about 2008 is genuinely disputed; the timing is suggestive, but rising incomes in consumer markets and increased organisation of trafficking networks changed at the same time, and the evidence does not cleanly separate these causes.
Displacement, not disappearance
A ban does not abolish demand; it moves the trade out of sight. The ivory trade after 1990 became an illegal trade, with the characteristics that implies: organised networks, corruption of officials, use of the same routes as other contraband, and violence. The burden of enforcement falls largely on range states, which are among the countries least able to fund it, while the profit accrues largely at the consumer end. This is the general pattern of prohibition policies, and it is why the ban has had to be accompanied by market closures, demand reduction and enforcement funding rather than standing on its own.
The later resurgence
From about 2008 there was a marked resurgence of elephant poaching in parts of Africa, particularly in central and eastern regions, driven by strong demand in East Asian markets. Populations in some countries fell steeply within a few years. The response — domestic market closures in major consumer countries, stronger trafficking enforcement, better monitoring — has since been followed by reported declines in illegal killing in several areas, though populations remain far below historical levels and the two African species are assessed as threatened.
What this case teaches
Three lessons carry beyond elephants. First, where a species is killed for a distant market, the effective lever is usually the market, not the animal. Second, a prohibition transfers the enforcement burden to the poorest link in the chain, so it must be paired with support for those enforcing it. Third, conservation that imposes costs on local people without returning benefits to them is fragile, however sound its ecology. Each of these will reappear when we come to trade regimes, toxic waste and aid.
8.4 Case Study: Ozone Depletion
Of the three cases in this chapter, ozone depletion is the most completely global. The gases responsible were manufactured and released almost entirely in the industrialised countries of the northern hemisphere. The damage appeared most severely over Antarctica, a continent with no industry at all. No country could protect itself by acting alone, and no country could be protected by anyone else’s action alone.
It is also, so far, the most successful case. The international response to ozone depletion is the standard example of a global environmental agreement that worked, and it is worth studying both for what it achieved and for the conditions that made the achievement possible — conditions that have not been easy to reproduce for other problems.
8.4.1 The Ozone Layer and What It Does
Ozone is a molecule of three oxygen atoms, \(\ce{O3}\), as against the two atoms of ordinary molecular oxygen, \(\ce{O2}\). It is present throughout the atmosphere in small quantities, but roughly nine-tenths of it lies in the stratosphere, the atmospheric layer extending from about 10 km to about 50 km above the surface. Within the stratosphere the concentration peaks between about 20 km and 25 km. This region of relatively concentrated ozone is what is called the ozone layer.
Diagram
Fig. 8.4-1 – vertical profile of ozone in the atmosphere; x-axis ozone concentration (ozone partial pressure in millipascals), y-axis altitude from 0 to 50 km; troposphere and stratosphere marked with the tropopause as a boundary line; a small secondary rise near the surface labelled “tropospheric ozone — a pollutant”; the main peak between 20 and 25 km labelled “ozone layer”
The word “layer” is misleading in one respect. Even at the peak, ozone is a trace constituent — a few molecules in every million. If all the ozone in a column of atmosphere were brought down to the surface and compressed to ordinary sea-level pressure, it would form a film about three millimetres thick.
What it absorbs
Solar ultraviolet radiation is divided into three bands by wavelength, and their fates in the atmosphere are quite different.
The important entry in that table is the middle row. UV-C is dangerous but never arrives; UV-A arrives but is comparatively mild. It is UV-B whose arrival at the surface depends on how much ozone stands overhead — which is precisely why a change in column ozone matters biologically.
The relationship is approximately proportional but amplified: a one per cent decrease in column ozone produces roughly a one to two per cent increase in UV-B reaching the surface, the exact factor depending on wavelength, latitude and cloud cover.
Because the layer is naturally thinner over the equator and thicker towards higher latitudes, surface UV-B is naturally highest in the tropics — before any depletion is considered at all.
8.4.2 How Ozone Is Formed and Destroyed: Chapman’s Cycle
Stratospheric ozone is not stored there like water in a tank. It is continuously created and continuously destroyed, and what we observe is the balance between the two. The scheme describing this balance was set out by Sydney Chapman in 1930 and is known as Chapman’s cycle.
The four reactions
Creation. Short-wavelength ultraviolet (below about 242 nm) splits a molecule of oxygen into two oxygen atoms:
\[\ce{O2 + h\nu -> O + O}\]
Formation of ozone. Each oxygen atom combines with another oxygen molecule. A third body \(\ce{M}\) — usually a nitrogen or oxygen molecule — is needed to carry away the excess energy so that the new molecule does not immediately fly apart:
\[\ce{O + O2 + M -> O3 + M}\]
Photolysis of ozone. Ozone absorbs ultraviolet in the range of roughly 200–310 nm and splits again:
\[\ce{O3 + h\nu -> O2 + O}\]
Removal. An oxygen atom meets an ozone molecule and both are converted back to ordinary oxygen:
\[\ce{O + O3 -> 2O2}\]
Diagram
Fig. 8.4-2 – Chapman cycle as a closed loop: O₂ + UV → 2O at the top, O + O₂ + M → O₃ on the right, O₃ + UV → O₂ + O on the bottom, O + O₃ → 2O₂ as an exit arrow on the left; the two middle steps enclosed in a shaded box labelled “null cycle — no net change in ozone, UV converted to heat”; the entry step labelled “production” and the exit step labelled “removal”
Reading the cycle
Notice that the second and third reactions convert ozone to oxygen and back again without any net change in the amount of ozone present. They are, taken together, a null cycle. What they do achieve is absorption: each turn of the loop takes in a packet of ultraviolet energy and releases it as heat.
The steady-state amount of ozone is therefore set by the first and fourth reactions — production from oxygen photolysis and removal by the atom–ozone reaction. Production is fastest where sunlight is most intense and directly overhead, which is over the tropics. Ozone made there is then carried by the slow circulation of the stratosphere towards higher latitudes, which is why column ozone is generally greater over middle and high latitudes than over the equator despite being made mostly at the equator.
8.4.3 How the Ozone Layer Gets Depleted
Catalytic destruction
A catalyst takes part in a reaction and is regenerated at the end of it, so a single catalyst molecule can drive the same reaction over and over. This is what makes small quantities of certain gases so damaging.
Take chlorine. A free chlorine atom reacts with ozone to give chlorine monoxide and oxygen; the chlorine monoxide then reacts with an oxygen atom, releasing the chlorine atom again:
\[\ce{Cl + O3 -> ClO + O2}\] \[\ce{ClO + O -> Cl + O2}\]
Adding the two gives the net reaction:
\[\ce{O3 + O -> 2O2}\]
The chlorine atom is unchanged and available to begin again. Estimates of how many ozone molecules a single chlorine atom destroys before it is finally locked away vary with conditions, but the number is of the order of a hundred thousand. Bromine atoms are considerably more effective still, atom for atom, which is why the bromine-containing halons matter despite being released in far smaller quantities.
Diagram
Fig. 8.4-3 – chlorine catalytic cycle drawn as a loop: Cl at the top reacting with O₃ to give ClO and O₂; ClO reacting with O to regenerate Cl and give O₂; the loop labelled “one chlorine atom, many ozone molecules”; two exit arrows from the loop labelled “reservoir species HCl and ClONO₂ — temporarily inactive”
Chlorine and bromine do not remain active indefinitely. They are converted into relatively stable reservoir compounds such as hydrogen chloride and chlorine nitrate, in which form they cannot attack ozone. This is a partial natural brake — and, as the next subsection shows, it is a brake that fails badly under polar conditions.
Why human-made gases reached the stratosphere at all
Nitrogen oxides and hydroxyl radicals are naturally present in the stratosphere, and natural chlorine also exists, mainly as methyl chloride from oceans and vegetation fires. Ordinary chlorine compounds, however, mostly do not get that far. Hydrogen chloride from sea spray, for instance, dissolves readily in water and is rained out of the lower atmosphere within days.
The gases that caused the problem had exactly the opposite properties, and they had them because they had been designed to. Chlorofluorocarbons were valued in industry precisely because they were non-toxic, non-flammable, chemically unreactive and insoluble in water. Those virtues meant nothing removed them from the lower atmosphere. Over years, ordinary air movements carried them up into the stratosphere, and there — where the intense short-wavelength ultraviolet that never reaches the ground is available — they finally broke apart, releasing chlorine:
\[\ce{CFCl3 + h\nu -> CFCl2 + Cl}\]
This is the essential irony of the case. The property that made these compounds safe to handle at ground level is the property that delivered them intact to the one place where they could do harm.
8.4.4 Ozone Depleting Substances and Their Life Span
An ozone depleting substance (ODS) is a compound that is stable enough to reach the stratosphere and that releases chlorine or bromine when broken down there. The syllabus specifies six groups, and each was used because it was good at a particular job.
Halons are bromine-containing compounds used in fire extinguishing systems, particularly where water or powder would damage what was being protected — aircraft, ships, computer rooms, military vehicles. They are extremely effective fire suppressants and, per molecule released, the most damaging of all the ODS because of bromine’s efficiency.
Carbon tetrachloride (\(\ce{CCl4}\)) was used as an industrial solvent, in dry cleaning and degreasing, and as a feedstock in manufacturing other chemicals, including CFCs themselves.
Chlorofluorocarbons (CFCs) are the largest contributor to ozone depletion. They were used as refrigerants in refrigerators, freezers and air conditioners, as propellants in aerosol sprays, as blowing agents for foams and packaging, and as cleaning solvents for delicate electronic components.
Methyl chloroform (1,1,1-trichloroethane) was a widely used industrial solvent for cleaning metal parts and electronic assemblies.
Methyl bromide (\(\ce{CH3Br}\)) was used as a soil fumigant before planting, for treating stored grain, and for quarantine treatment of goods in international trade.
Hydrochlorofluorocarbons (HCFCs) were introduced deliberately as transitional replacements for CFCs. The hydrogen atom in the molecule makes it vulnerable to attack in the lower atmosphere, so a large fraction is destroyed before it can reach the stratosphere. HCFCs therefore do much less damage than CFCs — but they still do damage, which is why they too are being phased out rather than kept.
Lifetime and ozone depletion potential
Two numbers describe how much harm a substance can do. Its atmospheric lifetime is the average time a released molecule survives before being destroyed; the longer this is, the greater the chance of reaching the stratosphere and the longer the effect persists after emissions stop. Its ozone depletion potential (ODP) compares its total damage, per unit mass released, with that of CFC-11, which is assigned a value of 1 by definition.
Values are approximate and are revised as measurements improve; treat them as indicating relative magnitude rather than exact constants.
Read the table for the pattern rather than the digits. Methyl chloroform and methyl bromide are short-lived, so controlling them produced results within a few years. CFC-12, at around a century, will still be in the atmosphere when today’s students are elderly. This is why the ozone layer will recover slowly even though production stopped decades ago: emissions were halted, but the existing burden must decay on its own timetable.
8.4.5 The Ozone Hole
The ozone hole is not a gap in the atmosphere. It is a region of severe seasonal thinning of the total ozone column, appearing over Antarctica each southern spring — chiefly September and October — and closing again as summer advances. It is conventionally identified where the column falls below 220 DU.
Its existence was a surprise. Depletion had been predicted from the chemistry, but nothing in that chemistry predicted a loss of this severity concentrated over one polar region in one season. The explanation required an additional mechanism that operates only under polar winter conditions, and it works in four stages.
Isolation. Through the Antarctic winter, a strong circumpolar wind system — the polar vortex — forms and seals off the air over the continent, preventing it from mixing with ozone-rich air from lower latitudes.
Very low temperatures and polar stratospheric clouds. Inside the vortex, in total darkness, stratospheric temperatures fall below about −78 °C. At such temperatures clouds of nitric acid and water ice particles form — polar stratospheric clouds — which do not occur in the ordinarily very dry stratosphere.
Chemistry on the cloud surfaces. The reservoir compounds that normally keep chlorine inactive react on the surfaces of these particles and are converted into forms that sunlight can easily split, for example:
\[\ce{HCl + ClONO2 -> Cl2 + HNO3}\]
The nitric acid is largely retained in the cloud particles, some of which settle out. This removes nitrogen compounds that would otherwise mop chlorine back up into reservoirs. By the end of the polar night, almost all the chlorine present is primed for release and the natural brake has been disabled.
Spring sunlight. When the Sun returns in September, it splits the accumulated chlorine molecules into free atoms, and catalytic destruction begins in air that has been prepared for it all winter. Ozone loss is extremely rapid, and much of the column can be destroyed within a few weeks. When the vortex finally breaks down in late spring, ozone-rich air from lower latitudes mixes in and the column recovers until the following winter.
Diagram
Fig. 8.4-4 – flow of the Antarctic ozone hole sequence: onset of polar winter → polar vortex isolates the air over Antarctica → temperature falls below about −78 °C → polar stratospheric clouds form → reservoir species react on cloud surfaces to give photolabile chlorine, nitric acid removed with settling particles → return of sunlight in September → rapid catalytic destruction of ozone → column falls below 220 DU → vortex breaks down in late spring → mixing with mid-latitude air restores the column
Diagram
Fig. 8.4-5 – line graph of minimum total column ozone over Antarctica in October against year; x-axis years from 1960 to the present, y-axis total column ozone in Dobson Units (DU) from 100 to 350; values near 300 DU until the late 1970s, a steep fall through the 1980s, values around or below 150 DU from the 1990s, and a slight upward trend with large year-to-year variation in recent years; a horizontal dashed line at 220 DU labelled “ozone hole threshold”
The Arctic shows the same chemistry but much weaker effects, because its stratosphere is warmer, its vortex less stable and shorter-lived, and polar stratospheric clouds accordingly less widespread. Severe Arctic ozone losses do occur, but only in occasional unusually cold winters.
8.4.6 Potential Effects of Ozone Depletion
Everything in this subsection follows from one fact: less column ozone means more UV-B at the surface. The effects are therefore effects of increased UV-B exposure, and they fall into four groups.
Human health
Ultraviolet-B is absorbed by DNA and can damage it directly, producing characteristic lesions that the cell must repair. Cumulative unrepaired damage raises the risk of skin cancers, including the more common basal cell and squamous cell carcinomas and the less common but more dangerous melanoma. Risk depends on cumulative lifetime exposure and on skin pigmentation, which is protective.
Eyes are also affected. Increased UV-B exposure is associated with a higher incidence of cataract — the clouding of the lens — and with photokeratitis, the painful inflammation of the cornea familiar as snow blindness. Some suppression of immune response has also been observed with increased UV exposure.
There is a benefit on the other side that should not be omitted: ultraviolet exposure of the skin is how the body synthesises vitamin D. The public health message is therefore about avoiding excess and burning, not about avoiding sunlight altogether.
Plants and crops
Many plants respond to increased UV-B with reduced growth, smaller leaves, altered flowering time and changes in the balance of compounds in their tissues. Sensitivity varies widely between species and even between varieties of the same crop, so the effect of depletion is not a uniform reduction in yield but a shift in which varieties do well — with implications for agriculture that are hard to predict in advance.
Aquatic ecosystems
UV-B penetrates several metres into clear water. Phytoplankton, the microscopic photosynthesising organisms that occupy the sunlit surface layer of the ocean, are directly exposed and are damaged by increased UV-B. Because phytoplankton form the base of marine food chains and account for a large share of global photosynthesis, effects at this level propagate upward through fish stocks and the animals that depend on them. Larval stages of fish, crabs and amphibians are also particularly vulnerable, since they are small, transparent and often live near the surface.
Materials and air quality
Ultraviolet degrades plastics, paints, rubber and other polymers, shortening the service life of anything left outdoors. Increased UV-B also accelerates the photochemical reactions that produce ozone in the lower atmosphere near the ground — where ozone is not a shield but a pollutant, irritating airways and harming crops.
The confusion between these two ozones is one of the commonest in the subject, and it is worth settling once.
The same molecule is desirable in one place and undesirable in another. Nothing about the chemistry changes; only its location does.
8.4.7 Steps Taken to Control Ozone Depletion
The two treaties
The international response came in two stages, and the sequence is instructive.
Why the Protocol worked
Four features, taken together, explain the success — and each corresponds to one of the obstacles identified in section 8.1.
It started modestly and tightened. The original commitment was a partial reduction. As the scientific evidence strengthened, particularly after the ozone hole was confirmed, the schedule was repeatedly accelerated by amendment. Countries were asked to agree to something achievable first and to more later, rather than to everything at once.
It recognised different circumstances. Developing countries were granted a grace period before their obligations began, on the reasoning that they had contributed little to the problem and had less capacity to adapt. India, for example, phased out CFCs by 2010 rather than by the earlier date applying to industrialised countries.
It paid. A Multilateral Fund was established in 1990, financed by industrialised countries, to meet the additional costs incurred by developing countries in converting to substitutes. This turned a demand into an offer.
It made staying out costly. The Protocol restricts trade in controlled substances, and in products containing them, with countries that are not parties. A country outside the agreement could not simply continue producing and selling as before. This directly attacks the free rider problem described in section 8.1.
A fifth condition was technical rather than diplomatic, and it should not be overlooked: workable substitutes existed or could be developed at manageable cost, and the number of firms producing the controlled chemicals was small. An agreement is far easier to negotiate and to police when compliance is affordable and the parties to be watched are few.
What was phased out, and when
Production and consumption of CFCs, halons, carbon tetrachloride and methyl chloroform were phased out in industrialised countries during the 1990s and in developing countries by 2010. Methyl bromide followed, with limited exemptions retained for quarantine and pre-shipment treatment where no alternative is available. HCFCs, the transitional substitutes, are on a longer schedule running to 2020 for industrialised countries and 2030 for developing countries, with limited allowances for servicing existing equipment.
The Kigali Amendment of 2016, in force from 2019, added a phase-down of hydrofluorocarbons. These contain no chlorine and do not deplete ozone at all; they were adopted as replacements and turned out to be very potent greenhouse gases. Bringing them under an ozone treaty was a pragmatic decision — the institutions and the reporting systems already existed and worked.
Where the layer stands now
The Montreal Protocol has been ratified by every country in the world — an achievement no other environmental agreement has matched. Atmospheric concentrations of the controlled substances have been falling since the 1990s, and scientific assessments indicate that the ozone layer is on a recovery path, with return to 1980 conditions expected around the middle of this century for most of the globe and considerably later over Antarctica.
Recovery is slow for the reason given by Table 8.5: the long-lived compounds already released have to decay. It is also not automatic. Unexpected emissions of controlled substances have been detected on more than one occasion since the phase-out, showing that the agreement holds only as long as monitoring continues and violations are found and stopped.
8.5 International Politics, National Sovereignty and Interest
The three cases you have just studied all ended at the same place. The science was reasonably clear; the difficulty lay in getting countries to act together. This section examines that difficulty directly, because it is not an obstacle on the way to environmental policy — it is environmental policy at the international level.
Start from an uncomfortable fact. There is no world government. There is no international authority that can pass a law binding on countries, collect a tax from them, or send an inspector into a factory without permission. Everything achieved internationally is achieved by agreement between states that remain free to refuse.
What sovereignty means here
Sovereignty is the principle that a state has supreme authority within its own territory and is not subject to any external authority without its consent. Applied to the environment, it has a specific and long-established form: a country has permanent sovereignty over the natural resources within its borders. It decides what to mine, what to fell, what to dam, what to grow and what to burn.
Set against this is a second principle, equally well established, usually called the no-harm rule: states must ensure that activities within their jurisdiction or control do not cause damage to the environment of other states, or of areas beyond national jurisdiction. It was stated in the declaration adopted at the United Nations Conference on the Human Environment at Stockholm in 1972 and restated at the Rio conference twenty years later.
The two principles are not contradictory in the abstract, and they collide constantly in practice. A country clearing its forest is exercising the first; if the clearing alters rainfall or releases carbon, the second is engaged. Neither principle tells you which should yield. That is decided by negotiation, and negotiation is decided by interest.
How an international agreement actually comes about
The mechanics matter, because they explain why the process is slow.
A treaty text is negotiated among interested states, usually over several years. When agreed, the text is adopted and opened for signature. Signature alone does not bind a country; it must then complete ratification — the formal step, taken under its own constitutional procedure, by which it accepts the treaty as legally binding on itself. A treaty enters into force only when a specified number of ratifications has been reached. Thereafter the parties meet periodically as a conference of the parties, which reviews progress and can adopt amendments or additional protocols.
Diagram
Fig. 8.5-1 – flow: scientific assessment identifies a problem → negotiation among states → text adopted and opened for signature → signature by states → ratification under each state’s own constitutional procedure → entry into force once the required number of ratifications is reached → conference of the parties meets periodically → amendments and protocols adopted → national implementing legislation and reporting; a return arrow from monitoring and reporting back to scientific assessment
Notice two things about this sequence. First, a country that does not ratify is not bound, no matter how many others have. Second, obligations are ultimately carried out through each country’s own law and its own officials. An international agreement without domestic implementing legislation is a statement of intent.
The common design used since the 1980s is the framework convention followed by protocols: a first treaty establishes principles, monitoring and a forum for meeting, and later protocols attach binding numerical commitments. The advantage is that countries can agree to talk before they agree to act, and the arrangement can then be tightened as evidence accumulates — the pattern you saw at Vienna and Montreal.
National interest, and why it is not simply obstruction
Governments are answerable to their own populations for employment, prices, energy supply and industrial competitiveness. When an environmental commitment threatens any of these, resistance follows. It is easy to describe this as short-sightedness, and sometimes it is; but it is more useful to see it as a structural problem.
The costs of an environmental commitment are usually concentrated, immediate and visible: a particular industry, a particular set of towns, this year. The benefits are usually diffuse, delayed and shared with countries that paid nothing — the free rider problem from section 8.1, seen from inside a cabinet room. An industry facing closure will lobby hard and knows exactly what it stands to lose. The beneficiaries of cleaner air two decades hence are not organised, and many of them are not yet born.
There is also a competitiveness argument, which is genuine and not merely an excuse. If one country imposes strict standards and its trading partners do not, production may shift to the partners. The pollution is then not prevented but relocated, and the strict country has lost the industry as well. This is why agreements that cover all significant producers, and that restrict trade with non-parties, succeed where unilateral action struggles.
The North–South argument
The deepest and most persistent division in environmental negotiations is between the industrialised countries and the developing world, and a student should be able to state each position in its strongest form rather than caricaturing either.
The developing-country position rests on history and on per-capita accounting. Industrialised countries built their wealth over two centuries by clearing forests, mining coal and emitting freely at a time when no restraint was asked of them. They account for the great majority of the historical accumulation of pollutants, and their consumption per person remains far higher. To ask countries with large poor populations to forgo the same path — or to bear the costs of a problem they did not create — is to ask them to pay for someone else’s growth. On this view, restraint by developing countries must be conditional on finance and technology from those who benefited.
The industrialised-country position rests on arithmetic and on the future. Whatever the history, a global problem cannot be solved if the fastest-growing sources of the problem are exempt from any obligation. Emissions do not become harmless because they can be historically justified. On this view, all significant emitters must act, though not necessarily to the same extent or on the same timetable.
The compromise reached in principle is common but differentiated responsibilities: all countries share responsibility for the global environment, but their obligations differ according to their contribution to the problem and their capacity to act.
The principle is agreed; its application is contested at every negotiation. How much difference is “differentiated”? Should a country’s obligation be judged by its emissions today, its emissions per person, its accumulated emissions since industrialisation, or its wealth? Each measure produces a different ranking, and each country tends to favour the measure under which it does best. Little is gained by pretending this is dishonest; it is what negotiation is.
Neither column is a set of excuses. Both contain arguments that have survived decades of scrutiny, and every serious agreement has had to find some accommodation between them.
Who else is at the table
Although only states sign treaties, they are no longer the only participants that matter.
Scientific assessment bodies, in which experts from many countries jointly summarise the state of knowledge, have become important because negotiations stall when the parties dispute the facts. Establishing an agreed factual basis separately from the bargaining has repeatedly proved to be the step that allows bargaining to begin.
Non-governmental organisations influence outcomes by monitoring, publicising and lobbying, and often by supplying technical analysis that smaller delegations cannot produce themselves. Corporations lobby too, and not always against action: a firm that has already invested in a substitute may want the standard tightened, since that turns its investment into an advantage.
Forest-dwelling and indigenous communities have gained formal standing in several processes, particularly those concerning forests and biological resources, on the argument that arrangements affecting the land they live on should not be made entirely without them.
What all this means for the rest of the chapter
If international environmental problems cannot be solved by command, they must be addressed through the arrangements that already move goods, money and technology between countries — trade, investment and aid. That is why a chapter on international relations and the environment spends the remainder of its length on trade rules, transnational companies, waste flows, intellectual property and foreign assistance. These are not a change of subject. They are the instruments through which environmental outcomes are actually determined.
8.6 International Trade: A Theoretical Perspective
Every argument in the rest of this chapter — about transnational companies, about waste shipments, about patents, about India’s exports — rests on a smaller set of ideas about why countries trade at all and who gains when they do. This section sets those ideas out.
It is worth saying at the start why an environmental science course spends time on trade theory. Trade decides where things are produced. Where things are produced decides which country’s forests, rivers, aquifers and air absorb the cost of producing them. A theory that explains the pattern of production is therefore also, indirectly, a theory about the geography of environmental damage.
8.6.1 Why Countries Trade
International trade is the exchange of goods and services across national borders. The obvious reason for it is that countries differ. Some have oil, some have iron ore, some have a climate suited to tea and some to wheat, some have deep-water ports, some have large pools of trained engineers. A country without bauxite must import aluminium or the ore to make it.
That explanation is correct but incomplete, because it does not account for the largest part of world trade, which is between countries that could each produce what they are buying. To explain that, two further ideas are needed.
Absolute advantage
A country has an absolute advantage in producing a good if it can produce more of that good from the same resources than another country can. The eighteenth-century economist Adam Smith argued that countries should specialise where they hold such an advantage and exchange the surplus, since making at home what could be bought more cheaply from abroad wastes resources.
This leaves an obvious question. What about a country that is worse at producing everything? On Smith’s argument it would seem to have nothing to offer.
Comparative advantage
The answer, set out by David Ricardo in the early nineteenth century, is one of the more surprising results in the subject. What matters is not how much of a good a country can produce, but what it must give up to produce it — its opportunity cost, the value of the next best alternative forgone.
A country has a comparative advantage in a good if it can produce that good at a lower opportunity cost than another country. Crucially, every country has a comparative advantage in something, however unproductive it may be in absolute terms, because opportunity costs are relative.
An example makes this concrete.
A worked example
Consider two countries, which we will call Country A and Country B, each with 100 workers, producing two goods: cloth and rice. In one year, a single worker can produce the following.
Country A is better at both. It has an absolute advantage in cloth and in rice. On Smith’s argument, there is nothing here for Country B.
Now compute opportunity costs. In Country A, a worker moved from rice to cloth produces 20 units of cloth but gives up 40 tonnes of rice. So
\[\text{Opportunity cost of 1 unit of cloth in A} = \frac{40}{20} = 2 \text{ tonnes of rice}\]
In Country B, the same worker produces 10 units of cloth and gives up 10 tonnes of rice:
\[\text{Opportunity cost of 1 unit of cloth in B} = \frac{10}{10} = 1 \text{ tonne of rice}\]
Cloth is cheaper to produce in B, measured in rice forgone. Country B therefore has the comparative advantage in cloth, even though it is worse at making cloth in absolute terms. By the same calculation, one tonne of rice costs Country A half a unit of cloth and Country B one full unit, so Country A has the comparative advantage in rice.
Suppose each country begins by dividing its workers equally between the two goods.
Country A: 50 workers on cloth give \(50 \times 20 = 1000\) units of cloth; 50 on rice give \(50 \times 40 = 2000\) tonnes of rice. Country B: 50 workers on cloth give \(50 \times 10 = 500\) units; 50 on rice give \(50 \times 10 = 500\) tonnes. Combined output: 1500 units of cloth and 2500 tonnes of rice.
Now let each shift towards its comparative advantage. Country B puts all 100 workers on cloth, producing 1000 units. Country A puts 25 workers on cloth and 75 on rice, producing \(25 \times 20 = 500\) units of cloth and \(75 \times 40 = 3000\) tonnes of rice. Combined output: \(500 + 1000 = 1500\) units of cloth and 3000 tonnes of rice.
The two countries together now have exactly as much cloth as before and 500 tonnes more rice, from the same 200 workers. Nobody worked harder; the extra output came from the pattern of specialisation alone. That surplus is the gain from trade, and it can be shared between the two countries at any exchange rate lying between their opportunity costs — that is, anywhere between 1 and 2 tonnes of rice per unit of cloth.
Diagram
Fig. 8.6-1 – paired bar chart of combined output of the two countries; two groups of bars, “cloth (units)” and “rice (tonnes)”, each showing two bars, “without specialisation” and “with specialisation”; cloth bars equal at 1500 units, rice bars at 2500 and 3000 tonnes; the difference of 500 tonnes labelled “gain from trade”
That last limitation is the one this course is most concerned with, and it recurs in section 8.9 and again in section 8.11.
8.6.2 Free Trade
Free trade is a policy under which goods and services move between countries without artificial restriction — no tariffs, no quotas, no discriminatory regulation. Domestic and foreign goods are treated alike, and neither is given special favour.
The case for it
Efficient use of resources. Following the argument above, each country’s land, labour and capital go to the uses where they are most productive, and total output is greater.
Cheaper goods and wider choice. Consumers gain access to goods produced more cheaply elsewhere and to goods not produced at home at all. For low-income households this matters most in essentials, where a price difference is felt directly.
A larger market. Producers sell to the world rather than to one country. Larger production runs lower unit costs, which is particularly important for industries where scale matters.
Competition and efficiency. Domestic firms sheltered from competition have little reason to control costs or improve quality. Exposure to imports forces improvement, and consumers gain even from the imports that are never bought, because their availability disciplines the domestic price.
Diffusion of technology. Imported machinery, components and know-how spread techniques that a country would otherwise have to develop for itself. In environmental terms this cuts both ways, but it is the main route by which cleaner production technology reaches countries that did not invent it.
The case against it
The gains are aggregate, not universal. The theory promises a bigger total, not a bigger share for everyone. When an industry cannot compete with imports, its workers lose employment immediately, while the benefit is spread thinly across consumers who barely notice it. Compensating the losers out of the gains is possible in principle and rare in practice.
Unequal starting positions. A country whose industry is young or small competes against firms that are already large, experienced and low-cost. The historical example most cited in India is the decline of traditional handicraft production during the colonial period under competition from mechanised imports, an episode taken up in section 8.8.
Terms-of-trade disadvantage. A country exporting primary commodities and importing manufactures may find that the prices of what it sells are volatile and rise more slowly than the prices of what it buys. Section 8.9 examines this in detail.
Vulnerability. An economy specialised in a few export goods is exposed to a collapse in their price or to a downturn in a distant market, over which it has no control.
Dumping. A foreign producer may sell below cost — dumping — long enough to drive local firms out, after which prices can be raised. Free trade rules generally permit countries to act against proven dumping.
Strategic dependence. Most countries prefer not to depend entirely on imports for food, energy or defence equipment, whatever the cost calculation says.
Environmental costs are outside the price. This is the objection central to this course. Market prices do not include the value of a depleted aquifer, a cleared mangrove or polluted air, so a country can hold a “comparative advantage” that consists largely of not charging for environmental damage. Trade then directs production towards wherever those costs are least accounted for, rather than wherever real costs are genuinely lowest.
Diagram
Fig. 8.6-2 – three labelled panels showing how expanding trade affects the environment: (a) scale effect — more total production and transport, more emissions and resource use; (b) composition effect — production shifts between countries and sectors, so the pattern of damage moves; (c) technique effect — trade spreads cleaner technology and raises incomes, and higher incomes are associated with stronger environmental standards; arrows below showing that the net outcome is the sum of the three and may be positive or negative
The three effects in Fig. 8.6-2 are the standard framework for thinking about trade and the environment, and they explain why the evidence is genuinely mixed. Expanding trade raises total production and transport, which increases pressure. It also relocates production, which may move it to places with weaker regulation or, equally, to places where it is done more efficiently. And it raises incomes and spreads technology, which historically has been associated with tighter environmental standards. Which effect dominates depends on the country, the sector and the regulation in place — which is an unsatisfying answer, but a more honest one than either slogan.
8.6.3 Protectionism and Import Barriers
Protectionism is the opposite policy: the deliberate restriction of imports in order to shelter domestic producers from foreign competition.
The instruments
A tariff is a tax on an imported good. It raises the price the importer must charge, which reduces the quantity imported and shifts demand towards domestic producers. It also yields revenue to the government — historically a major reason for tariffs, and still significant in countries where other taxes are hard to collect.
A quota is a direct limit on the physical quantity of a good that may be imported in a period. It restricts supply and so raises the domestic price, but the extra amount consumers pay goes to whoever holds the import licence rather than to the treasury.
Beyond these two lie the non-tariff barriers, which have become more important as tariffs have fallen worldwide.
Administrative and technical requirements — standards for safety, labelling, packaging, plant and animal health. These are legitimate and necessary in themselves; they become barriers when they are set or applied so as to exclude foreign goods rather than to protect anyone.
Licensing requirements that make importing slow, uncertain or expensive.
Anti-dumping duties, levied on goods found to be sold below a fair price. The instrument is permitted precisely because dumping is a genuine problem; it is also the instrument most often criticised for being used protectively.
Domestic subsidies, which lower the costs of local producers rather than raising those of foreign ones, with a similar effect on the balance of competition.
Government procurement preferences, requiring public bodies to buy from domestic suppliers.
Exchange rate policy. A government that keeps its currency weak makes imports dearer and exports cheaper. This works only in the short run, since a weak currency raises the cost of imported inputs and tends to feed into domestic inflation, which erodes the advantage.
The case for protection
Infant industry. A new industry may be uncompetitive at first and become competitive once it has grown and accumulated experience. Temporary protection lets it reach that point. This is the strongest argument for protection and is examined in section 8.6.4.
Employment. Protection preserves jobs in the sheltered industry, which matters greatly where those jobs are concentrated in particular towns and alternatives are scarce.
Revenue. Import duties are comparatively easy to collect.
Strategic self-sufficiency. Food and defence are the usual examples.
Preventing dumping and its long-run effect on domestic competition.
Maintaining standards. A country may refuse imports produced in ways it does not permit at home. This is where protection and environmental policy meet, and where the argument becomes hardest.
The case against
Consumers pay. A tariff raises the price of the protected good for everyone who buys it, including poorer households, so that a smaller number of producers may benefit.
Inefficiency persists. An industry that does not face competition has little pressure to improve, and protection intended as temporary tends to become permanent, since the protected industry lobbies to keep it.
Costs cascade. Protecting steel raises costs for every industry that uses steel, which can damage more employment than it saves.
Retaliation. Trading partners respond in kind, and exporters in the protecting country lose markets.
Rent-seeking. Where licences and exemptions are valuable, effort goes into obtaining them rather than into producing better goods.
8.6.4 Domestic Industry versus Free Trade
The choice is rarely all of one or all of the other. Every country in the world uses some protection, and every country trades. The real question is which industries, how much, and for how long.
The infant industry argument
The infant industry argument holds that a new industry cannot compete at first — its costs are high because it is small, inexperienced and lacks trained workers and supplier networks — but that these disadvantages fall as it accumulates experience and scale. Temporary protection allows it to survive to that point, after which it can stand on its own and the protection can be withdrawn.
The argument is theoretically sound and historically supported. Several countries that now advocate open trade built their own industries behind tariff walls, and it is fair to note that the ladder was in use before it was criticised.
Its weakness is in the word “temporary”. Protection creates a group with a strong, concentrated interest in keeping it, and the political difficulty of withdrawing it is far greater than the difficulty of granting it. An industry protected indefinitely has no reason ever to become competitive. The proposed remedy — announcing in advance a schedule under which protection declines to zero by a fixed date, so that firms plan around its removal — is easier to design than to sustain.
India’s experience, in outline
After independence, India followed a strategy of import substitution: building domestic capacity in basic and capital goods behind high tariffs, import licensing and restrictions on foreign investment, on the reasoning that a newly independent economy exporting raw materials and importing manufactures would remain dependent. The strategy built a broad industrial base and technical capability across many sectors.
It also produced well-documented costs: high prices and limited choice for consumers, long waiting periods for manufactured goods, weak incentives to improve quality, and an export sector that grew slowly because producers faced no competitive pressure and imported inputs were expensive. From 1991, following a severe foreign exchange crisis discussed in section 8.10, tariffs were reduced substantially, import licensing was largely dismantled and foreign investment was liberalised.
The consequences are debated seriously and along more than one line. Output growth, exports and the range of goods available increased markedly. Employment in manufacturing grew more slowly than output; some traditional industries contracted under import competition; and gains were distributed unevenly across regions and sectors. Both the achievements and the costs are real, and a student is not required to choose a side — only to know what each side points to.
Where environmental standards enter
The hardest version of the free trade–protection dispute is environmental. Suppose a country bans imports of a product made by a process it prohibits at home — a fishing method that kills protected species, a tannery process that discharges untreated effluent.
The case for allowing it: a country that sets high standards should not be forced to undercut them by importing the results of low ones, since otherwise the strictest country simply loses the industry and the pollution continues elsewhere.
The case against: this permits any importing country to dictate how goods are produced inside another country, which is the sovereignty problem of section 8.5; and a standard set by a rich country’s technology may be unattainable for producers in a poorer one, so that a measure presented as environmental operates as a barrier. Exporters have frequently argued that some environmental and health requirements are protectionism wearing a green label.
Both objections have force, and international trade law has dealt with such disputes case by case — generally accepting that a country may protect the environment, while scrutinising closely whether the measure is applied even-handedly to domestic and foreign producers or is designed to discriminate. Section 8.13 returns to this when the rules of the World Trade Organisation are examined.
8.7 Globalisation
A cotton shirt on a shop shelf in Jaipur may contain fibre grown in one country, spun in a second, dyed and stitched in a third, using a dye formulated in a fourth, sold under a brand owned in a fifth, and financed by investors in a sixth. Nothing about the shirt announces this. It is simply a shirt.
That is globalisation as most people meet it — not as a policy but as an ordinary object with an extraordinarily dispersed history.
8.7.1 What Globalisation Means
Globalisation is the process by which countries, economies and societies become increasingly integrated and interdependent, through the growing movement across borders of goods and services, capital and investment, people, and knowledge, technology and culture.
The four flows
It helps to keep the flows separate, because they do not always move together and their environmental consequences differ.
Goods and services. Trade in physical goods, and increasingly in services delivered across borders — software, design, financial and customer services.
Capital and investment. Money moving between countries, whether as long-term investment in factories and infrastructure, or as short-term flows into and out of financial markets.
People. Migration for work, study and settlement, and with it the flow of remittances back to the country of origin.
Knowledge, technology and culture. Techniques, standards, designs, entertainment, food habits and ideas — including environmental ideas, treaties and scientific evidence.
Diagram
Fig. 8.7-1 – globe at centre with four sets of arrows crossing national boundary lines, labelled: goods and services; capital and investment; people and remittances; knowledge, technology and culture; below each arrow a one-line note of its environmental consequence — freight emissions; where production and its pollution are located; pressure on urban services; diffusion of both cleaner technology and higher-consumption habits
Not a new phenomenon
Long-distance exchange is ancient. The overland routes across Asia collectively known as the Silk Road, and the monsoon-driven trade of the Indian Ocean linking the Indian subcontinent with Arabia, East Africa and Southeast Asia, carried goods, techniques, religions and languages for many centuries.
What distinguishes the present phase is its scale, its speed and its organisation. Earlier trade moved finished luxuries between distant markets. Modern globalisation breaks the making of a single ordinary object into stages located in different countries — the global supply chain. This is a genuine difference in kind, not merely in degree.
Three things made it possible. Transport became extremely cheap, above all through containerisation, which turned loading and unloading from a labour-intensive operation of days into a mechanical one of hours. Communication became effectively instantaneous and nearly free, which allowed a firm to coordinate production it did not own in places it had never visited. And policy changed: tariffs fell, capital controls were relaxed and investment rules were liberalised in most countries from the 1980s onwards.
Two kinds of integration
Economists distinguish two routes to integration, and the distinction is useful because they raise different objections.
Negative integration is the removal of barriers — tariffs, quotas, capital controls, restrictions on foreign firms. It asks countries to stop doing certain things.
Positive integration is the harmonisation of rules — common standards for products, common accounting and patent rules, agreed dispute procedures. It asks countries to adopt particular rules, often ones designed elsewhere, which is why it raises the sovereignty questions of section 8.5 far more sharply than the removal of a tariff does.
Globalisation is not the same thing as free trade
Students frequently treat these as synonyms. Free trade is a policy about goods crossing borders. Globalisation is a broader process that also carries capital, people, technology and ideas, and that can advance even where trade barriers remain.
8.7.2 Advantages of Globalisation
Resources are used where they are most productive. This is the argument of section 8.6 applied across the whole world economy rather than between two countries, and it holds for the same reason.
Consumers gain variety and lower prices. Goods once unavailable or unaffordable — medicines, machinery, electronics, off-season foods — become ordinary purchases. This effect is largest, proportionally, for households with the least to spend.
Producers reach larger markets. A firm in one country can sell to the world, which permits scales of production that no single domestic market would support, and can lower unit costs accordingly.
Capital reaches countries short of it. Investment flows from where savings are abundant to where returns are higher, financing infrastructure and industry that domestic savings alone could not fund.
Technology and know-how spread quickly. A technique developed in one country becomes available worldwide within years rather than generations. In environmental terms this is the single most important benefit: efficient motors, cleaner fuels, better effluent treatment, low-cost solar generation and the instruments used for monitoring pollution have all diffused this way, and most countries adopting them did not invent them.
Employment and incomes in export sectors. Where export-oriented production has grown, it has drawn large numbers of workers into wage employment, often from agriculture, and several countries have reduced poverty substantially over recent decades in the course of doing so.
Risks can be pooled. A poor harvest in one region need not become a shortage, because supply can be drawn from elsewhere. Integrated markets have blunted local scarcities that would once have been severe.
Shared problems become negotiable. The same connections that carry goods carry information, evidence and treaties. The ozone agreements of section 8.4 were possible only in a world already organised for coordinated international action.
8.7.3 Disadvantages of Globalisation
Before listing these, one term needs explaining. This syllabus uses the phrase third world, a term that came into use during the Cold War for countries aligned with neither of the two power blocs and now used loosely for the poorer countries of Asia, Africa and Latin America. It is retained here because the syllabus uses it; the terms more usual in current writing are developing countries or the Global South.
The gains are unevenly distributed between countries. Countries exporting manufactures with rising technological content have generally gained more than countries exporting a narrow range of primary commodities. Integration does not distribute its benefits equally, and section 8.9 examines why.
The gains are unevenly distributed within countries. Workers whose skills fit the expanding export sectors gain; workers in industries displaced by imports lose, and often lose in concentrated places where alternative work is scarce. A national figure showing a gain can conceal both.
Vulnerability to distant shocks. A financial crisis, a recession or a decision by a large buyer in one country transmits rapidly to producers in others who had no part in causing it and no means of influencing it. The same networks carry communicable disease.
Pressure on smaller producers. Firms competing with global companies face rivals with greater capital, wider reach and lower unit costs. Some adapt; others do not.
Loss of policy room. A government whose firms must remain internationally competitive, and which depends on mobile investment, may find its choices about taxation, labour regulation and environmental standards constrained by what investors will accept elsewhere.
Erosion of local diversity. Uniform products, brands and habits displace local varieties of food, craft, dress and language. This is not only cultural: local crop varieties and traditional agricultural practices, which are part of the biological and knowledge base discussed elsewhere in this course, are lost with them.
The environmental objections
Four deserve separate statement, because they are the ones this course is concerned with.
Scale. More production, more consumption and more freight mean greater total use of energy and materials, whatever gains in efficiency accompany them. Efficiency improvements per unit have frequently been outrun by growth in the number of units.
Distance between consumer and consequence. When the aquifer being depleted, the forest being cleared and the effluent being discharged are all several countries away from the person buying the product, the ordinary feedback that restrains local damage is broken. Nobody in the consuming country sees anything but a price.
Relocation of polluting production. The pollution haven hypothesis holds that firms move pollution-intensive production to countries with weaker environmental regulation, so that stricter standards in rich countries reduce their own pollution while increasing it elsewhere. The evidence is mixed and genuinely contested: compliance costs are usually a small share of total costs compared with labour, market access and infrastructure, and studies find the effect to be real in some heavily polluting industries and weak or absent in most others. It should be presented as a serious hypothesis with partial support, not as an established fact.
Consumption norms travel too. Along with technology, globalisation spreads expectations — of car ownership, of packaged food, of frequently replaced electronics. A pattern of consumption that developed where a small share of the world’s population lives has become the aspiration of a much larger share, and the resource implications of that are examined in section 8.11.
Diagram
Fig. 8.7-2 – supply chain of an ordinary garment shown as a chain of boxes across a simplified world map: cotton grown and irrigated in one country → yarn spun in a second → fabric dyed and finished in a third → garment stitched in a fourth → shipped to a retail market in a fifth → discarded and exported as used textile to a sixth; below each box, the principal environmental cost at that stage: water abstraction, energy use, dye effluent, energy and labour, freight emissions, textile waste
8.8 Transnational Companies and the Environment
Trade theory speaks of countries trading with countries. A great deal of what is counted as international trade is in fact movement between different parts of the same company — a component made by a subsidiary in one country and shipped to an assembly plant owned by the same parent in another. To understand where production is located, and therefore where its environmental costs fall, you have to look at firms rather than at flags.
8.8.1 What a Transnational Company Is
A transnational company (TNC), also called a multinational corporation, is a firm that owns or controls production or service facilities in more than one country. It has its headquarters in one country — the home country — and operates wholly or partly owned subsidiaries in others, the host countries. The subsidiaries are usually separate legal companies registered under host-country law, while strategy, finance and technology are directed from the parent.
Investment of this kind — a firm acquiring or building lasting productive capacity in another country, rather than merely lending to it — is called foreign direct investment (FDI), and it is distinguished from portfolio investment, which buys shares or bonds without any controlling interest and can leave as quickly as it came.
Why firms go abroad
To reach a market. A firm that has saturated its home market grows by entering others, and producing inside a market avoids transport costs and delays.
To get over a barrier. Where a country’s tariffs make imports expensive, producing inside the tariff wall restores access. Protection intended to build domestic industry frequently attracts foreign factories instead.
To lower costs. Wages, land, energy and regulatory compliance cost different amounts in different countries, and a firm can locate each stage of production where that stage is cheapest.
To reach a resource. Ore, oil, timber, fish and agricultural land exist where they exist, and firms that process them must go there.
To reduce tax. Where a company operates in many jurisdictions, the prices at which its own units sell to one another — transfer pricing — determine in which country its profit is recorded. Setting these prices so that profit appears in low-tax jurisdictions is a long-standing concern of tax authorities, and it matters to this course because it affects how much revenue a host government has with which to regulate anything.
Diagram
Fig. 8.8-1 – structure of a transnational company: parent company headquarters in the home country at the top; below it, three wholly or partly owned subsidiaries in different host countries and two independent contract suppliers; arrows upward labelled “profits, dividends, royalties” and downward labelled “capital, technology, brand, specifications”; a footnote arrow beside the host-country boxes labelled “environmental costs of production arise here”
8.8.2 A Historical Perspective: Colonialism and Its Lasting Impact
The transnational company is not a recent invention. Its ancestors were the chartered trading companies of the seventeenth century, which were granted monopoly rights over trade with a region by their home governments and which, in several cases, went on to acquire territory, raise armies, levy taxes and govern.
The colonial trade pattern
Under colonial rule the direction of trade was reorganised, and the pattern established then is the origin of several difficulties discussed in the rest of this chapter.
Raw materials — cotton, jute, indigo, tea, timber, hides, oilseeds, minerals — moved from the colony to the industrialising home country. Manufactured goods moved back. The colony supplied inputs at low prices and bought finished goods at higher ones.
Domestic manufacturing contracted under this arrangement. Indian handloom textiles, which had been a major export for centuries, faced competition from mechanised mill cloth that was cheaper, entered with little restriction, and was sold in a market where the local product also carried internal duties. The result, usually called deindustrialisation, was a shift of population from craft manufacturing back into agriculture — the reverse of the transition occurring at the same time in the countries importing the raw cotton.
Land use changed. Revenue systems that demanded payment in cash pushed cultivators towards crops that could be sold rather than eaten, and in some regions cultivation of commercial crops for export was directly required or strongly induced. Areas growing food for local consumption were converted to indigo, cotton, jute, opium and tea. A farming system holding reserves against a bad season became a farming system dependent on a distant market’s price, and food security weakened correspondingly.
Infrastructure followed the trade. The railway network was laid out to move commodities efficiently from producing regions to ports, rather than to connect producing regions with each other. Forest legislation asserted state ownership over large areas, partly to secure timber for railway sleepers and shipbuilding, restricting the customary access of forest-dwelling communities in the process.
Diagram
Fig. 8.8-2 – colonial trade pattern: outline map of a colony with producing regions inland, rail lines converging on two or three ports, arrows outward labelled “raw cotton, jute, indigo, tea, timber, minerals” and arrows inward labelled “mill cloth and manufactured goods”; a note beside the inland regions reading “land shifted from food crops to commercial crops”
What has lasted
Three consequences are relevant to this chapter, and each is examined further in the sections that follow.
First, an export structure concentrated in primary commodities, which is the starting point of the terms-of-trade problem in section 8.9.
Second, transport and port infrastructure oriented towards export rather than internal circulation, which continued to shape investment long after independence.
Third, and least tangible, an economic relationship in which the higher-value stages of production — design, processing, branding, finance — were located in one country and the resource-extracting stages in another. Section 8.9 shows how far that division has and has not changed.
The differences in the first two rows are large and should not be blurred: a modern company cannot legislate, tax or govern. What the comparison shows is continuity in the third and fifth rows — in the pattern of where value is captured and where environmental cost is incurred.
8.8.3 TNCs and the Environment: A Conflict of Interest
Where the conflict comes from
The conflict is structural rather than a matter of anyone’s character, and it can be stated in two sentences. A company’s decisions are answerable to its owners, and its costs are the ones that appear in its accounts. The environmental damage caused by production frequently does not appear in those accounts at all, because it falls on people who are not party to the transaction — an externality, and one located in a different country from the owners.
Several features sharpen this.
Mobility. A firm that can produce in many countries can compare them. A government contemplating stricter standards must weigh the possibility that investment goes elsewhere. This does not require any threat to be made; the possibility alone shifts the balance of bargaining, and the resulting reluctance to tighten rules is sometimes called regulatory chill.
Competition between host governments. Countries seeking investment offer incentives — tax holidays, land, exemptions, relaxed inspection. Where several compete for the same plant, the terms offered tend to converge downwards.
Distance between decision and consequence. The decision on plant design, safety systems and effluent treatment may be taken in one country by people who will never live near the plant. The consequences fall on those who do.
Separation of legal personality. Because a subsidiary is a separate legal company, liability for its actions does not automatically reach the parent. Where a subsidiary’s assets are small relative to the harm caused, this becomes decisive.
Unequal capacity. A regulator with a small budget and few technically trained inspectors is supervising an organisation with far greater technical and legal resources. Enforcement depends on capacity, not only on the strictness of the law on paper.
The case on the other side
It would be a poor account that stopped there, because several of the advantages are equally real.
Transnational firms are the principal channel through which capital and modern technology reach countries that cannot generate them domestically, including the pollution control, monitoring and energy-efficiency technology examined elsewhere in this course. They generally pay more than local firms in the same country and offer more formal employment conditions, though less than they pay in their home countries. Large firms operating in many jurisdictions often apply a single internal standard across all sites, because running to different standards in different places is expensive and reputationally risky — and where that standard is set by the strictest country in which they operate, it exceeds the local legal requirement in the others.
Their visibility also makes them accountable in ways that small local producers are not. A well-known brand can be pressed by consumers, investors and regulators in its home country over conditions in a factory it does not own, and supply-chain commitments of the kind described in section 8.2 exist because that pressure works. A great deal of the world’s most damaging production is carried out by small, informal, dispersed enterprises that no campaign can reach.
When the conflict is not resolved
The Bhopal gas leak is the case most often studied in India, and it is studied because of what it revealed about accountability across borders rather than for the details of the accident.
What has been tried
Purely national regulation reaches only as far as the border, so several partial mechanisms have developed.
Home-country litigation, in which claims are brought against a parent company in the courts of the country where it is headquartered, has succeeded in some recent cases and failed in others; jurisdiction is the recurring obstacle.
International guidelines for the conduct of multinational enterprises, and internationally agreed principles on business responsibility for human rights, set expectations for company behaviour abroad. These are not directly enforceable in the way a statute is; their effect works through reporting, national contact points and reputation.
Mandatory disclosure — requiring firms to publish emissions, effluent and hazard information — has proved effective out of proportion to its apparent mildness, because it allows regulators, investors and neighbouring communities to see what is happening without needing an inspection.
Conditions imposed by lenders and buyers, under which finance or a purchase contract requires specified environmental performance, reach firms that national regulators struggle to influence.
None of these dissolves the underlying conflict of interest. They alter the balance of information and the cost of causing harm, which is what regulation of any kind can realistically do.
8.9 Trade Between the First and the Third World
Section 8.6 showed that trade produces a gain and said nothing about how the gain is shared. This section takes up the sharing, because the pattern of trade between industrialised and developing countries has a definite shape, and that shape has environmental consequences that follow from it directly.
8.9.1 Characteristics of Trade Between Unequal Partners
The basic pattern
The historical pattern described in section 8.8 — raw materials outward, manufactures inward — did not end with the colonial period. It has weakened considerably, and for some countries it has been transformed; but for many it persists in outline.
A primary commodity is a product sold in essentially the form in which it is extracted or harvested: ore, crude oil, cotton, coffee, rubber, timber, fish. Trade in these against manufactured goods has several features that make the exchange different from trade between two industrial economies.
Price volatility, and why it is not a minor inconvenience
Demand for most primary commodities responds weakly to price: people do not drink twice as much coffee because coffee is cheap, and a steel mill needs the ore quantity its output requires. Supply responds slowly too, because a mine or a plantation takes years to establish and cannot be switched off cheaply once built. When demand or supply shifts, therefore, the whole adjustment falls on price, which consequently swings far more than the underlying quantities.
For a country whose export earnings, government revenue and foreign exchange all depend on two or three commodities, this means budgets that cannot be planned, investment that cannot be sustained and periodic crises unrelated to anything the country did.
Market power on the two sides
At the producing end there are typically very many sellers — thousands of farms, dozens of mines — competing with one another. At the buying, processing and retailing end there are frequently a small number of large firms. When many small sellers face few large buyers, the price settles closer to the buyers’ preference. This is why the share of a final retail price that reaches the primary producer is generally small, and why it has proved so difficult to raise.
Tariff escalation
There is a specific policy feature that helps hold this pattern in place, and it is worth knowing by name. Tariff escalation is the practice of setting import duties that rise with the degree of processing: low or zero on the raw material, higher on the semi-processed form, higher still on the finished product.
Tariffs have fallen considerably worldwide, and escalation with them; but non-tariff requirements — packaging, labelling, plant health and food safety standards — apply mostly to processed products, and compliance costs fall hardest on small exporters. The effect is similar even when the tariff is gone.
Diagram
Fig. 8.9-1 – tariff escalation shown as a three-step ladder: raw material (low or zero duty) → semi-processed product (moderate duty) → finished consumer product (high duty); beside each step, the value added at that stage shown as an increasing bar and the environmental cost of the stage noted, with land, water and ore-body use concentrated at the first step
8.9.2 Terms of Trade
What the term means
The terms of trade measure the rate at which a country’s exports exchange for its imports. In its usual form it is the ratio of an index of export prices to an index of import prices, expressed relative to a base year:
\[\text{Terms of trade} = \frac{P_x}{P_m} \times 100\]
where \(P_x\) is the index of the country’s export prices and \(P_m\) the index of its import prices, both taken as 100 in the base year. The result is an index number with no units.
If the index rises above its base value, the terms of trade have improved: the same volume of exports now buys more imports. If it falls, they have deteriorated: more must be exported to obtain the same imports.
A worked example
Consider a country in a base year and five years later.
In the base year the terms of trade are, by construction,
\[\frac{100}{100} \times 100 = 100\]
Five years later,
\[\frac{120}{150} \times 100 = 80\]
Notice first that the prices of this country’s exports have risen, by 20 per cent. A student who looked only at export prices would conclude that things had improved. But import prices rose by 50 per cent over the same period, so the country is worse off in exchange: its terms of trade have fallen from 100 to 80, a deterioration of 20 per cent.
What does that mean in physical terms? To buy the same basket of imports as before, the country must now export
\[\frac{100}{80} = 1.25\]
that is, 25 per cent more volume than before. Twenty-five per cent more ore hauled, more hectares under the export crop, more water abstracted, more fish landed — for exactly the same set of imported goods.
This is the point at which an economics measure becomes an environmental one. A sustained deterioration in the terms of trade of a country that exports natural resources translates, more or less directly, into increased physical extraction. The country runs harder to stay in the same place, and the running is done on its own soil, water and ore bodies.
Diagram
Fig. 8.9-2 – line graph of a terms of trade index against time; x-axis years over a period of about forty, y-axis terms of trade index with base year = 100; a line showing large short-run swings around a gently declining trend, with the trend line drawn separately as a dashed line; two swings labelled “commodity price boom” and “price collapse”, and a note that the volatility, not only the trend, is what makes planning difficult
The Prebisch–Singer argument
Whether the terms of trade of primary exporters decline over the long run is one of the older disputes in development economics.
The policy conclusion drawn from this argument in the mid-twentieth century was the import substitution strategy described in section 8.6.4, and later the emphasis on diversification and on moving up the processing chain. That conclusion is separable from the hypothesis: a country can have good reason to diversify away from a few volatile commodities whether or not their relative price is declining in the long run.
8.9.3 Composition of Trade and Environmental Degradation
The final step joins the two halves of this section. If a country’s exports are concentrated in primary commodities, then its export earnings are produced by physically removing material from its own territory — and the environmental cost of doing so is borne where the extraction occurs, while the product is consumed elsewhere.
Mining, and open-cast mining in particular
Open-cast mining — also called open-pit or surface mining — extracts a mineral deposit lying near the surface by stripping off the material above it rather than tunnelling to reach it. It is far cheaper and safer for workers than underground mining, which is why it is used wherever the geology permits.
Its environmental cost is proportionately large, and it has four components.
Land and overburden. The soil and rock removed to expose the deposit — the overburden — is many times the volume of the mineral extracted, and must be dumped somewhere. Vegetation, soil profile and land form are removed together over the whole worked area.
Water. Pits are dewatered to keep them workable, which lowers the water table across the surrounding area and can dry the wells and springs on which nearby settlements depend.
Acid mine drainage. Where the rock contains sulphide minerals, exposing it to air and water produces sulphuric acid, which drains into surface water and groundwater and dissolves metals from the rock as it goes. Acid mine drainage is the most persistent of mining’s legacies: once begun, it can continue for many decades after the mine has closed, and treating it is expensive and indefinite.
Dust and overburden dumps. Blasting, hauling and crushing generate large quantities of particulate matter, and unstabilised dumps erode into local watercourses.
Diagram
Fig. 8.9-3 – cross-section of an open-cast mine: benched pit with the ore body at its base; overburden dump alongside; original ground surface and vegetation shown as a dashed line across the top; labelled arrows for dust from blasting and haulage, lowered water table extending beyond the pit to a village well, and acid drainage from exposed sulphide-bearing rock entering a stream
Agriculture for export
Growing for a distant market rather than for local consumption changes what is grown and how. Export crops are typically grown as monocultures over large areas, which simplifies management and increases vulnerability to pests, and therefore pesticide use. Irrigation is expanded to meet contract quantities and delivery dates, which in water-scarce regions draws down groundwater. Fertiliser use rises with yield targets, and the surplus reaches surface water. Where the crop displaces food production, the district exports agricultural value while importing food.
None of this is an argument that export agriculture is harmful in itself. It is an argument that the intensity of resource use rises with the commercial stakes, and that the resource being intensified is local while the payment for the crop is set elsewhere.
Aquaculture
Coastal aquaculture for export has been a rapidly growing source of foreign exchange for several countries, and its environmental effects — clearance of coastal vegetation, salinisation of adjoining land and wells, and nutrient-rich effluent — are examined in detail as a case study in section 8.10.4.
Forestry and fisheries
Timber extraction for export has the effects examined in section 8.2. Fisheries have a distinct problem: fish stocks in national waters are frequently harvested under access agreements sold to distant fleets, and a stock that is a renewable resource under moderate harvesting becomes a depleting one under intensive harvesting, with the fee received bearing no relation to the value of the stock lost.
The underlying point
Bring the strands together. The country exports material; the material’s price does not include the aquifer, the overburden dump, the mangrove or the fish stock; if the terms of trade deteriorate, the volume exported must rise to buy the same imports; and the environmental cost rises with the volume, not with the value.
This is what is meant when writers describe such trade as an unequal exchange in physical as well as monetary terms. The country receives a market price and gives up an asset that was never priced.
8.10 India’s International Trade
The previous section described a general pattern. This one examines a particular country, which is useful because India fits parts of that pattern and has moved decisively away from others.
8.10.1 Characteristics, Major Imports and Exports
The shape of the trade
Two accounting terms are needed first. The balance of trade is the difference between the value of a country’s merchandise exports and that of its merchandise imports over a period. The balance of payments is the wider record of all economic transactions between residents of a country and the rest of the world — merchandise, services, income and financial flows — set out in a standard form.
India’s balance of trade in goods has been in deficit for most of the period since independence: it buys more goods from the rest of the world than it sells. That deficit is partly offset by two large inflows that are not merchandise trade — earnings from services exports, particularly software and business services, and remittances sent home by Indians working abroad, which are among the largest such flows in the world.
Diagram
Fig. 8.10-1 – line graph of India’s merchandise exports and imports against time; x-axis financial years over about three decades, y-axis value in US$ billion; two rising lines with imports consistently above exports, the gap between them shaded and labelled “merchandise trade deficit”; a separate dashed line showing net services exports, and an arrow indicating the extent to which it offsets the merchandise gap
What India sells and buys
Read the two columns against each other, because the pairs are instructive.
India imports crude petroleum and exports refined petroleum products. It imports rough stones and exports cut and polished ones. In both cases the country is buying a raw material, adding value through processing, and selling the result. This is exactly the movement up the processing chain that section 8.9 identified as the route out of a primary-exporting position, and it is the reverse of the colonial pattern of section 8.8.
At the same time, several characteristic vulnerabilities remain.
Energy dependence. The large majority of India’s crude petroleum requirement is imported. Crude is the single largest item in the import bill, so a rise in world oil prices worsens the trade balance immediately and by a large amount, regardless of anything happening in the domestic economy.
Gold. Imports of gold, bought largely as a household store of value rather than as an industrial input, are a substantial and unusually price-sensitive part of the bill.
Exposure to world prices. Both the petroleum and the gems trades involve importing a commodity and exporting a processed version of it, so the margin between the two prices matters more than either price alone.
Agricultural exports from a water-scarce country. This is the point taken up in section 8.10.3.
Services as the strong suit. India’s most successful export sector is one that consumes comparatively few natural resources per unit of earnings — an important fact when the environmental cost of exports is being assessed.
8.10.2 Foreign Exchange Crises
Why a country can run out of foreign exchange
Imports must be paid for in currencies the exporting country will accept. A country accumulates such currency by exporting, by receiving remittances and investment, or by borrowing, and it holds a stock of it as foreign exchange reserves. Reserves are conventionally measured in months of import cover — how many months of imports the stock would pay for if all other inflows stopped.
A crisis occurs when reserves fall towards the point where essential imports — fuel, fertiliser, medicines, capital goods — cannot be paid for. It is not a crisis of the trade balance alone; it becomes acute when lenders and investors, seeing the reserves fall, withdraw funds, which makes the fall faster.
India’s experience
India faced foreign exchange difficulties several times in its early decades. A serious episode in the mid-1960s combined the costs of successive drought years, which forced large food imports, with military expenditure and a fall in aid, and was followed by a devaluation of the rupee in 1966 — a devaluation being a deliberate official reduction in the value of a currency against others, which makes exports cheaper abroad and imports dearer at home.
The decisive crisis came in 1991, and its sequence is worth learning because each step led to the next.
Diagram
Fig. 8.10-2 – flow of the 1991 balance of payments crisis: sustained fiscal and current account deficits through the 1980s, financed by external borrowing → sharp rise in world oil prices following the Gulf conflict of 1990–91 → import bill rises while remittances from West Asia fall → foreign exchange reserves decline to a few weeks of import cover → credit rating downgraded and short-term lenders withdraw → gold reserves pledged abroad to raise funds → assistance from the International Monetary Fund with conditions attached → rupee devalued in two steps in July 1991 → programme of tariff reduction, dismantling of import licensing and liberalisation of foreign investment
The immediate outcome was that the crisis was contained. The lasting outcome was the change of policy direction described in section 8.6.4: tariffs came down substantially, industrial and import licensing was largely dismantled, and rules on foreign investment were relaxed.
Two features of the episode belong in this chapter rather than in an economics one.
First, the crisis illustrates what section 8.5 called loss of policy room. A country that needs emergency finance negotiates from weakness, and the conditions attached to that finance shape domestic policy for years afterwards. Whether the conditions attached in 1991 were sound is debated; that they were not freely chosen is not.
Second, a foreign exchange shortage creates a standing pressure to export whatever can be exported. That pressure is the subject of the next subsection.
8.10.3 The Export Imperative and Its Impact on the Environment
What the imperative is
The export imperative is the sustained pressure on a country to increase export earnings, arising from its need for foreign exchange to pay for essential imports and to service external debt. It is not a policy that anyone announces; it is a constraint that shapes many policies at once.
Its environmental significance is straightforward. When the objective is foreign exchange, the measure of success is the value earned, and the natural resources consumed in earning it do not appear in that measure at all. An export that earns dollars while depleting an aquifer registers entirely as a gain.
Three routes by which this has operated in India can be described concretely.
Mineral exports
Rising world demand for iron ore in the 2000s drew a rapid expansion of mining in several states, with export-oriented extraction growing much faster than domestic processing. The expansion outran the capacity to regulate it. Investigations subsequently established substantial extraction outside sanctioned areas and beyond permitted quantities, along with transport of ore on a scale that damaged local roads, water sources and air quality, and mining operations were suspended by court order in more than one state while the position was regularised.
The episode illustrates a general point rather than a local failure. When the price of an exportable mineral rises sharply, the incentive to extract rises immediately, while the capacity to survey, permit, monitor and enforce grows slowly if at all. The gap between them is where the damage occurs.
Agricultural exports and water
India exports rice, sugar, cotton and other water-intensive products. Every such export carries with it the water that was used to grow it — a quantity known as virtual water, the volume of water embedded in the production of a commodity, which is traded along with it even though no water crosses the border.
The point is not that these exports should stop. It is that a country with severe groundwater depletion in its main grain-producing regions is, through this trade, exporting a scarce resource priced as though it were free, and that the arithmetic of the export earnings does not record this at all.
Coastal aquaculture
The third route is the case study the syllabus requires, and it is taken separately below.
8.10.4 Case Study: Aquaculture in India
What aquaculture is, and why it grew
Aquaculture is the farming of aquatic organisms — fish, crustaceans, molluscs and aquatic plants — under some degree of human control over stocking, feeding and protection, as distinct from the capture of wild stocks. India has a long tradition of it in inland ponds and tanks; what changed from the 1980s was the rapid growth of intensive coastal shrimp farming for export.
The reasons for that growth were compelling on their own terms. Shrimp commands a high price in export markets, earnings per hectare far exceed those from paddy, coastal India has extensive suitable land and a long coastline, and the sector generates employment in districts where alternatives are few. Fisheries and aquaculture together contribute significantly to national output and to food security, and support the livelihoods of millions of people.
What the intensive form does to the coast
Intensive pond culture differs from traditional practice in ways that matter environmentally.
Land conversion. Ponds were commonly created by converting mangrove areas, salt-tolerant wetland, paddy fields and salt pans. Mangroves are the ecologically costly conversion: they act as nursery grounds for many fish and crustacean species, stabilise the shoreline, trap sediment and buffer storm surge. Clearing a mangrove for a shrimp pond removes the nursery that supplies wild stocks in order to farm one species.
Salinisation. Ponds are filled with saline or brackish water. Seepage from ponds and from feeder channels raises the salinity of adjoining soil and of shallow groundwater, so that neighbouring wells turn brackish and adjoining paddy land loses productivity. The damage falls on land the pond operator does not own.
Effluent. Intensive ponds receive formulated feed, a substantial fraction of which is never eaten. Pond water accumulates uneaten feed, faeces and metabolic wastes, and when it is exchanged or drained it carries a heavy nutrient and organic load into creeks and coastal waters.
Disease and chemical use. High stocking densities make disease outbreaks likely and costly. Chemicals and, in the earlier phase, antibiotics were used to control them, with consequences both for coastal waters and for the acceptability of the product in importing markets that test for residues.
Boom and collapse. Because a disease outbreak can destroy a crop completely, and because pond soils degrade under intensive use, individual operations have a limited productive life. The pattern in several areas was rapid expansion, a severe viral disease outbreak in the mid-1990s, widespread abandonment of ponds, and land left salinised and unusable for other purposes.
Diagram
Fig. 8.10-3 – cross-section of a coastal shrimp farming area: sea and creek on the left, a cleared mangrove fringe marked with a dashed outline labelled “former mangrove”, an intensive pond with intake and discharge channels, and adjoining paddy land and a village with an open well on the right; arrows showing saline seepage moving landward into the well and the paddy soil, and nutrient-rich effluent discharging into the creek
The regulatory response
Where the sector stands
Coastal aquaculture in India did not disappear; it was reorganised. Farming shifted largely outside the restricted zone and onto land legally cleared for it, registration and effluent conditions were introduced, and from 2009 an introduced species, the Pacific white shrimp, was permitted under controlled conditions and now accounts for most production. Better management practices — lower stocking densities, water treatment before discharge, restrictions on antibiotic use driven partly by residue testing in importing countries — have been adopted, unevenly, across the sector. India is today among the world’s largest exporters of farmed shrimp, and marine products are a significant export earner.
The costs did not disappear either. Mangrove areas converted in the expansion phase have not generally been restored; salinised land in the older farming districts remains difficult to return to cultivation; and disputes between pond operators, cultivators and traditional fishing communities over access to land, water and creeks continue in several coastal districts.
8.11 Economic Allocation of Scarce Resources and Its Impact on the Environment
Every section of this chapter so far has, at bottom, been about the same thing: who gets to use a limited resource, on what terms, and who bears the cost of using it. This section states that underlying problem directly, because once it is stated clearly, a great deal of what came before falls into place.
The basic economic problem
Economics begins from a single observation. Human wants are effectively unlimited, while the resources available to satisfy them — land, labour, materials, time — are limited. Because of this mismatch, every use of a resource is a choice to forgo some other use of it. Scarcity in this sense is not the same as shortage; it is the permanent condition that there is not enough of everything to do everything, so that choosing one thing means giving up another.
From scarcity follows opportunity cost, met in section 8.6: the value of the next best alternative given up when a choice is made. The opportunity cost of using a river to carry away a factory’s effluent is the fishing, the drinking water and the irrigation that the river can no longer provide. Nothing about the river is free, even where nobody is charged for it.
The three questions every society must answer
Because resources are scarce, every society — whatever its political arrangements — must somehow answer three questions.
What to produce. Food or industrial machinery? Housing or luxury goods? A given piece of land can grow a subsistence crop or a commercial one, but not both.
How to produce. By many workers or by machines? By a process that is cheap and polluting or one that is costly and clean?
For whom to produce. Who receives the output? Everyone according to need, those who can pay, or some other basis? A society can produce a great deal and still leave some of its members with almost nothing.
These are not abstract. Every one of the environmental conflicts in this chapter is a particular case of them. Whether to fell a forest or keep it is a “what to produce” question. Whether to mine by cheap open-cast methods or costlier underground ones is a “how” question. Whether a river serves upstream industry or downstream cultivators is a “for whom” question.
Free goods and economic goods
Not everything is scarce. A free good is one available in such abundance, relative to the demand for it, that no one need give up anything to obtain it and it commands no price. Clean air, historically, was the standard example: you breathed as much as you liked and deprived no one.
An economic good is one that is scarce, so that obtaining it has an opportunity cost and, in a market, a price.
The crucial environmental insight is that goods move from the first category to the second as population and production grow. Clean air over a city with heavy traffic is no longer freely available; breathing it now competes with using the same air to disperse emissions. Fresh water in a region of falling water tables is no longer a free good. Much of environmental degradation can be described as the silent conversion of free goods into scarce ones — a conversion that markets are slow to register, because a good that used to be free has no price to rise.
Efficiency, and what it leaves out
An allocation of resources is efficient, in the ordinary economic sense, when output is produced at the lowest possible cost and it is not possible to make anyone better off without making someone else worse off. Efficiency is a real virtue: producing the same goods with fewer raw materials, less energy and less waste is unambiguously good, environmentally as well as economically.
But efficiency is defined over the things that are counted. If clean air, groundwater and a stable climate are not counted — because they have no price — then an allocation can be perfectly efficient on paper while running them down. A factory that dumps its waste in a river is being efficient in the narrow sense: it is minimising its costs. The costs it has shifted onto everyone downstream do not appear in its accounts at all.
This is the pivot of the whole section, and it has a name.
Externalities
An externality is a cost or benefit of an activity that falls on someone who is not party to it, and that is not reflected in the price of the activity. When it is a cost, it is a negative externality; when a benefit, a positive one.
Most environmental damage is a negative externality. The factory’s effluent, the mine’s dust, the aquifer drawn down by an export crop, the carbon released by clearing a forest — in each case the person doing the activity captures the benefit and pays the private cost, while a wider cost falls on others who are neither consulted nor compensated.
The consequence is precise and important. Because the price of the polluting activity does not include the external cost, the activity looks cheaper than it truly is, and so more of it is done than would be done if all costs were counted. The market, left alone, produces too much of whatever pollutes and too little of whatever cleans up. This is not a failure of individual conscience; it is a structural feature of how prices work when some costs are outside them.
Diagram
Fig. 8.11-1 – two-panel diagram of a negative externality: left panel, a factory with an arrow “private cost — labour, materials, energy” leading to a price; right panel, the same factory with an additional arrow “external cost — polluted river, lost fishing, health effects” leading off to a group of third parties who receive no payment; a caption noting that the market price reflects only the private cost, so the true cost to society is higher than the price
Full-cost thinking
The response that economics offers is to bring the external cost inside the price — to internalise it — so that the person deciding whether to pollute faces the true cost of doing so. The general principle behind this is the polluter pays principle: the party responsible for producing pollution should bear the cost of managing it, rather than passing it to society or to later generations.
The instruments for doing this are developed in the chapter on environmental economics — a tax on emissions, a charge for water abstraction, a requirement to treat effluent, a deposit that is refunded on safe return, a duty placed on a producer to take back a product at the end of its life. What matters here is the logic they share: each attempts to make the price of an activity tell the truth about its cost.
This connects the whole chapter. A country holds a “comparative advantage” partly because it does not price its environmental damage (section 8.6). Trade directs polluting production towards where that damage is least accounted for (section 8.7). An export earns foreign exchange while depleting an unpriced aquifer (section 8.10). A transnational company relocates to where compliance is cheapest (section 8.8). Every one of these is the externality problem, seen from a different side. The environmental difficulty of international trade is, in large part, that the prices which drive it are systematically incomplete.
The consumption dimension
There is one further piece, and it concerns not how resources are allocated but how much is demanded of them, and by whom.
The pressure a population places on the environment is not settled by its numbers alone. A useful way to see this is a simple relation sometimes written as
\[I = P \times A \times T\]
where \(I\) is the total environmental impact, \(P\) is the population, \(A\) is affluence measured as consumption per person, and \(T\) is a technology factor measuring the impact per unit of consumption. The relation is a framework for thinking rather than a precise equation, but it makes an important point that population figures alone conceal: impact is the product of how many people there are, how much each consumes, and how much damage each unit of consumption does.
The middle term is where the international inequality is sharpest. Consumption per person differs enormously between countries and between groups within countries.
This has a direct bearing on the negotiations of section 8.5. When obligations are argued about, one side counts total emissions by country and the other counts emissions per person, and the two measures rank countries very differently precisely because the affluence term varies so much. The disagreement is not only about history; it is about whether impact should be attributed to the many who consume little or the few who consume much.
The ecological footprint
A way of expressing total demand that captures both the number of people and their consumption is the ecological footprint: an estimate of the biologically productive land and water area required to supply the resources a population consumes and to absorb the waste it generates, using prevailing technology. It is measured in global hectares, a hectare adjusted to world-average biological productivity.
Its usefulness is that it converts a mixed basket of demands — food, timber, fibre, fossil energy, built land — into a single comparable quantity of area, and allows that demand to be set against the productive area actually available, the biocapacity. Where a population’s footprint exceeds the biocapacity available to it, it is drawing on stocks — soil, forests, fish, groundwater, the atmosphere’s capacity to hold carbon — faster than they regenerate. This is precisely the “running down of natural capital” that the concluding sections of the environmental economics chapter examine, and it is the physical meaning of the abstract phrase “unsustainable”.
The footprint has genuine limitations, which an honest treatment states. It compresses very different kinds of demand into one number, which hides important detail; it depends on assumptions about productivity and about how carbon is counted; and it says nothing about local pollution that is not a matter of area at all. It is a useful lens, not a verdict — a way of asking whether a given level of consumption could be sustained if everyone lived that way, not a precise measurement of harm.
8.12 The Toxic Waste Trade
The chapter opened with a pollutant that crossed the world by accident, carried by wind and current to a place it had never been used. This section concerns pollutants that cross the world on purpose, loaded into containers and shipped, because it is cheaper to move a country’s waste abroad than to deal with it at home.
It is the clearest illustration in the chapter of a single idea: that trade can move not only goods but also the harm attached to them, and can move the harm in the opposite direction from the benefit.
8.12.1 Definition and Origin
What toxic waste is
Toxic waste, more precisely called hazardous waste, is discarded material that, because of its chemical or biological nature, poses a substantial threat to human health or the environment when it is not managed properly. The standard criteria are that a waste is hazardous if it is toxic, corrosive, flammable, reactive, or infectious.
It arises from many sources: industrial processes above all, but also mining, healthcare, agriculture, laboratories, and increasingly from discarded electrical and electronic equipment. Electronic waste (e-waste) — discarded computers, phones, screens and appliances — is a rapidly growing category, hazardous because such equipment contains lead, mercury, cadmium and brominated flame retardants alongside the small quantities of valuable metals that make recovering it worthwhile.
The toxic waste trade
The toxic waste trade is the movement of hazardous waste across national borders for disposal, treatment or recycling. It exists for one reason, and the reason is entirely economic.
Disposing of hazardous waste safely is expensive in a country with strict standards — engineered landfills, high-temperature incineration, treatment and long-term monitoring all cost money, and the cost rose sharply in industrialised countries as their regulations tightened from the 1970s. Disposing of the same waste in a country with weak standards and low labour costs is cheap. The difference between the two prices is the profit in the trade.
Why the trade emerged when it did
The pattern followed directly from the tightening of regulation. As disposal costs rose in industrialised countries during the 1970s and 1980s, waste began to be shipped to countries where it could be handled far more cheaply — and where environmental regulation was weaker, enforcement was thinner, and the payment offered was attractive relative to local incomes. The trade became a recognised international problem in the 1980s, after several consignments of hazardous waste were exported to developing countries under misleading descriptions and, in some cases, simply abandoned there.
Diagram
Fig. 8.12-1 – flow of a hazardous waste consignment: industrial process in an exporting country generates waste → high domestic disposal cost under strict regulation → waste consolidated and often relabelled (e.g. as “recyclable material” or “goods for reuse”) → shipped to a receiving country with weaker regulation and lower costs → informal handling: open dismantling, burning or dumping → contamination of local soil, water and air, and exposure of the people handling it; a cost arrow pointing from exporter to receiver labelled “payment”, and a harm arrow pointing the same way labelled “environmental and health cost”
Notice in Fig. 8.12-1 that the payment and the harm travel in the same direction — from the exporting country to the receiving one. This is the reverse of ordinary trade, where the good moves one way and the payment the other. Here the country that receives the payment also receives the damage.
8.12.2 Factors Sustaining the Trade
Four conditions keep the trade going, and each corresponds to something already established in this chapter.
The cost gap. Safe disposal in a strict-standard country can cost a great deal per tonne; unsafe disposal in a weak-standard country can cost almost nothing. As long as that gap is large, there is money to be made by moving the waste across it. This is the externality problem of section 8.11 operating internationally: the exporter avoids a cost by shifting it onto people in another country who are not compensated for bearing it.
Weak enforcement at the receiving end. Where a country’s regulatory capacity is thin, waste can enter under a false description — as second-hand goods, as recyclable material, as raw material for reprocessing — and be handled without the safeguards its true nature requires.
The recycling loophole. A great deal of hazardous material has genuine value: e-waste contains recoverable metals, and used batteries contain lead. Labelling a shipment as material sent for recycling or reuse, rather than as waste sent for disposal, can move it outside the reach of controls designed for waste. The distinction between recycling and dumping is real, but it is also the gap through which much of the trade passes.
Local livelihoods. At the receiving end, recovering materials from waste is a source of income for large numbers of people. They dismantle equipment, burn cables to reach the copper, and extract metals using crude methods, earning a livelihood from work that exposes them directly to the hazards. Because the income is real and alternatives are scarce, the activity persists even where it is formally prohibited.
8.12.3 Impact on Third World Countries
The health and environmental consequences follow from the nature of the material and the manner of handling it.
Contamination of water and soil
Hazardous waste dumped or buried without containment leaches into groundwater and contaminates the water source of whatever community draws on it. The contamination reaches crops through irrigation and soil. Unlike many pollutants, several of the substances involved do not break down: heavy metals such as lead, mercury and cadmium remain hazardous indefinitely, so land once contaminated can stay affected for decades.
Accumulation through the food chain
Persistent toxic substances behave like the pollutant in the chapter opener. Mercury and similar substances entering water are taken up by aquatic organisms and concentrated up the food chain by bioaccumulation, reaching people who eat fish and meat far from the point of dumping. The exposure is not limited to those who live beside the site.
Direct exposure of workers
Those who handle the waste — dismantling electronics, burning cables, recovering lead from batteries — are exposed directly and heavily, usually without protective equipment, to substances that damage the nervous system, kidneys and lungs and that are especially harmful to children. This is the most concentrated harm in the whole chain, and it falls on the least protected people in it.
Long-term economic damage
The consequences outlast the event. Once agricultural land or a water source is contaminated with persistent substances, it can be lost to use for a generation, which harms the very agricultural livelihoods on which such communities most depend. A short-term payment for accepting waste is set against a long-term loss of land and health, and the two are rarely weighed against each other by the same people.
8.12.4 Steps to Mitigate: The Basel and Bamako Conventions
The international response came in two treaties, and the relationship between them illustrates a recurring feature of environmental negotiation: a global agreement that some parties judged too weak, followed by a stronger regional one.
The Basel Convention
The Convention was a real advance, and it was also criticised from the day it was signed for not going far enough. Its central objection was structural: a system based on consent still permits the trade to continue wherever consent can be obtained, and consent can be obtained cheaply from a country or an official who needs the payment. Critics argued that controlling the trade was not enough and that export of hazardous waste from richer to poorer countries should be prohibited outright.
That criticism led to a further step. An amendment to the Convention, agreed in 1995 and generally called the Basel Ban Amendment, prohibits the export of hazardous waste for disposal and for recycling from a defined group of developed countries to other countries. It took many years to gather the ratifications needed to enter into force, which it eventually did in 2019 for the countries that had accepted it.
The Bamako Convention
Dissatisfaction with Basel among African countries produced a stronger regional treaty.
Why the Bamako response makes sense
The two treaties together tell a coherent story that connects back to section 8.5. A global agreement must accommodate the interests of exporters and importers alike, so it settles on the strongest rule all significant parties will accept — which, for waste, was control rather than prohibition. A group of countries who are overwhelmingly on the receiving end, and who judge control insufficient, can then bind themselves regionally to a stricter rule among themselves. The regional treaty is stronger precisely because its members share an interest that the global membership did not.
The limits of the treaties
Neither treaty has ended the trade, for reasons that a student should be able to state. Enforcement depends on the capacity of receiving countries, which is exactly what is weak. The recycling loophole persists, since material described as sent for reuse or recovery is harder to stop than material openly described as waste. Waste can be transhipped through intermediate countries to disguise its origin. And a treaty binds only the countries that have ratified it; a major exporter that has not fully accepted the strictest provisions weakens the whole system.
The realistic assessment is that the treaties raised the cost and the difficulty of the trade and drove much of it further into disguise and illegality, without abolishing it — which is the same pattern seen with the ivory ban in section 8.3. A prohibition changes the form of a trade driven by a large price gap; it does not remove the gap, and the gap is what sustains the trade.
8.13 Trade Regimes: GATT and the World Trade Organisation
The trade described so far in this chapter does not happen in a vacuum. It happens under rules — agreed between countries, written down, and enforced through a dispute procedure. These rules decide what tariffs a country may charge, what it may ban, what standards it may impose and what subsidies it may pay. They therefore also decide, indirectly, a great deal about the environment, because they set the limits within which a country may act on environmental grounds.
This section describes those rules and how they came to exist, and then asks the question the syllabus poses: how have they affected India, and its environment.
8.13.1 GATT and Its Metamorphosis into the WTO
The origin
After the Second World War, the major economies set out to build institutions that would prevent a return to the economic disorder of the 1930s, when countries had raised trade barriers against one another in a spiral that deepened the depression. Two of the institutions planned at Bretton Woods in 1944 — an international body for finance and one for reconstruction and development — were established. A third, an International Trade Organisation intended to govern trade, was negotiated but never came into being, because it was not ratified by the countries whose participation it needed.
What survived was a narrower agreement negotiated alongside it: the General Agreement on Tariffs and Trade (GATT), concluded in 1947 and in effect from 1948. It was intended as a temporary arrangement pending the trade organisation that never appeared, and it lasted, in that provisional form, for nearly half a century.
How GATT worked
GATT operated through rounds — extended cycles of negotiation in which all members bargained together over reductions in trade barriers. Early rounds concentrated on cutting tariffs. Later rounds became broader and more ambitious, extending to non-tariff barriers and, eventually, to areas GATT had never touched.
The last and largest of these was the Uruguay Round, which ran from 1986 to 1994. It went far beyond tariffs, bringing agriculture, services, and intellectual property into the trading system for the first time, and — most importantly for institutional history — it created a permanent organisation to house and enforce the rules.
The metamorphosis
Diagram
Fig. 8.13-1 – timeline of the trading system: 1944 Bretton Woods conference plans three institutions → 1947–48 GATT concluded as a provisional agreement, the trade organisation having failed → successive negotiating rounds through the following decades, tariffs falling and coverage widening → 1986–94 Uruguay Round extends coverage to agriculture, services and intellectual property → 1995 World Trade Organisation established, absorbing GATT and adding a binding dispute settlement system → subsequent Doha Round launched 2001 and left largely unresolved
The World Trade Organisation (WTO) came into being on 1 January 1995. It is an intergovernmental organisation that administers the rules of international trade, provides a forum for negotiating new agreements, and settles disputes between its members. GATT was not abolished; it was absorbed into the WTO as one of the agreements the new organisation administers, alongside the new agreements on services and intellectual property.
Two changes made the WTO more than a renamed GATT.
First, it was permanent and comprehensive. Where GATT was a provisional agreement about goods, the WTO is a standing organisation covering goods, services and intellectual property together, which a country joins as a single package rather than picking and choosing.
Second, and more consequentially, it has a dispute settlement system with binding force. Under GATT, a country found to be breaking the rules could effectively block the ruling against it. Under the WTO, a member that believes another is violating the rules brings a complaint, a panel decides it, and if the losing country does not comply, the winning country may be authorised to impose retaliatory trade measures. This gave the rules teeth they had never had — and, as the environmental discussion below shows, made the question of what those rules permit on environmental grounds far more than academic.
8.13.2 Principles and Functions of the WTO
The core principles
The whole system rests on a small number of principles, of which two are fundamental.
Most Favoured Nation (MFN) treatment is the rule against discriminating between trading partners. If a country grants a favourable term — a lower tariff, say — to one member, it must grant the same term to all members. There is no “most favoured nation” that is treated better than the rest; the effect of the rule is the opposite of its name — every member is treated as well as the best-treated one.
National Treatment is the rule against discriminating in favour of domestic goods once foreign goods have entered the market. An imported good, once it has crossed the border and paid any lawful tariff, must be treated no less favourably than an equivalent domestic good in respect of internal taxes and regulations.
Together these two principles define non-discrimination: not between one foreign country and another, and not between foreign and domestic goods inside the market.
The functions
The WTO’s stated functions follow from these principles: to administer the trade agreements, to provide a forum for further negotiation, to settle disputes, to review members’ trade policies, and to assist developing countries with trade matters. The reduction of trade barriers is pursued through negotiation, on the theory of comparative advantage set out in section 8.6 — the claim being that lowering barriers raises total welfare, whatever it does to its distribution.
Where the environment collides with the rules
The principles above are neutral about the environment, which is exactly where the difficulty lies. Consider a country that wishes to ban an import on environmental grounds — a product made by a method that kills protected marine species, or timber from an unsustainably logged forest.
Two of the WTO’s rules immediately come into play. National Treatment asks whether the country treats the offending import worse than a comparable domestic product. And a deeper question arises: may a country restrict a good because of how it was produced, when the product itself is physically identical to a permissible one? A prawn is a prawn; the objection is to the net that caught it, not to the prawn.
The WTO framework does allow environmental exceptions. Its rules include general exceptions permitting measures necessary to protect human, animal or plant life or health, and measures relating to the conservation of exhaustible natural resources. But an exception is conditional: the measure must genuinely serve the stated purpose, must not be applied so as to discriminate arbitrarily between countries where the same conditions prevail, and must not be a disguised restriction on trade.
Disputes of exactly this kind have been decided, and the general direction of the outcomes is worth stating, because it corrects a common misconception. The dispute bodies have not held that countries may not protect the environment. They have repeatedly accepted that environmental protection is a legitimate objective, while scrutinising closely whether a given measure was applied even-handedly, or whether it singled out some countries’ goods while overlooking the same problem at home or in favoured partners. The recurring conclusion has been that a country may protect the environment, but must do so without using the environmental purpose as a cover for discrimination.
8.13.3 TRIPS, TRIMS and the Agreement on Agriculture
The Uruguay Round produced several agreements beyond the reduction of tariffs. The syllabus names four, and each matters to the environment along a different route.
GATT, in its updated form, remains the agreement governing trade in goods, carrying the principles above.
TRIPS — the Agreement on Trade-Related Aspects of Intellectual Property Rights — requires member countries to provide minimum standards of protection for intellectual property: patents, copyrights, trademarks, industrial designs, geographical indications and trade secrets. Before TRIPS, countries set their own rules; TRIPS obliged all members to protect intellectual property to a common minimum standard, which meant substantial change for many developing countries. Its environmental and developmental significance is examined in section 8.14; the essential points here are that it requires patents to be available for inventions in essentially all fields of technology, and that it thereby extends into areas — seeds, medicines, biological material — with direct consequences for agriculture and health.
TRIMS — the Agreement on Trade-Related Investment Measures — restricts the conditions a country may attach to foreign investment where those conditions distort trade. In particular it limits requirements that a foreign investor use a minimum proportion of local inputs (local content requirements) or balance imports against exports. Its relevance to this chapter is that it narrows the range of conditions a host country may place on a transnational company — the very conditions that section 8.8 discussed as tools for capturing local benefit from foreign investment.
The Agreement on Agriculture (AoA) brought agricultural trade under multilateral rules for the first time. It addresses three areas: market access, meaning tariffs and quotas on agricultural imports; domestic support, meaning subsidies paid to farmers within a country; and export subsidies. Its aim was to reduce the distortions caused by heavy agricultural protection and subsidy in the wealthier economies.
Why the Agreement on Agriculture is contested
The Agreement on Agriculture has been among the most disputed, and the dispute runs along the North–South line of section 8.5.
Developing countries argue that the agreement addressed their tariffs while leaving the very large domestic subsidies paid to farmers in some wealthy economies substantially in place, so that their own farmers compete against heavily supported foreign produce. They also argue that food security in a country where a large part of the population depends on farming cannot be treated purely as a trade question — that the right to hold public food stocks and to support subsistence farmers is different in kind from ordinary commercial protection.
The opposing view holds that subsidies and protection distort production and prices worldwide, that they encourage overproduction and its environmental costs, and that agricultural trade should be governed by the same rules as any other. The negotiations intended to resolve these differences — the Doha Round, launched in 2001 with an explicit development focus — reached no comprehensive conclusion, leaving agriculture the area where the trading system’s rules remain most unsettled.
8.13.4 How These Agreements Have Affected India
The syllabus asks for a brief understanding of the effect on India, and brief it should be. Four effects can be stated, each with both sides recorded, because none is simply good or simply bad.
On industry and trade
Membership committed India to reducing tariffs and opening sectors, continuing the direction taken after 1991. Exporting industries gained more predictable access to foreign markets and the protection of a binding dispute system in which a smaller economy can, in principle, win a case against a larger one. Import-competing industries faced greater competition, with the mixed distributional consequences discussed in section 8.6.4.
On agriculture
The Agreement on Agriculture engaged India’s largest source of livelihood. India has consistently argued in the negotiations for the protection of subsistence farmers and for the right to hold public food stocks for food security, positions bound up with the food security law examined in an earlier chapter of this course. The tension between the trade rules and domestic food policy remains one of the recurring subjects of the negotiations, and it is unresolved rather than settled either way.
On medicines and seeds
TRIPS required India to change its patent law. Before TRIPS, Indian law granted patents on the process of making a medicine but not on the medicine itself, which allowed Indian firms to manufacture low-cost versions of drugs patented elsewhere by using a different process. India amended its law to comply with TRIPS by providing product patents. To limit the effect on access to affordable medicines, the amended law included safeguards permitted under TRIPS, and India remains a major supplier of low-cost generic medicines to many countries. The balance between rewarding innovation and keeping medicines affordable is a live and contested one, and it is examined further in section 8.14.
The extension of intellectual property to seeds and plant varieties has similar two-sidedness. It can reward the development of improved varieties; it can also restrict the traditional practice of saving and exchanging seed, on which many small cultivators rely. India addressed this through a law recognising both breeders’ rights and farmers’ rights, an arrangement examined in the next section.
On investment
TRIMS narrowed the conditions India could attach to foreign investment, limiting tools such as local content requirements. The effect is contested along the lines of section 8.8: openness to investment brings capital and technology, while restrictions on the conditions that may be attached reduce a host country’s leverage to ensure that the investment builds local capability and captures local benefit.
8.14 Intellectual Property Rights
The chapter opened with a chemical crossing a border. This section concerns something less tangible crossing a border: an idea, a design, a plant variety, the genetic information in a seed. When these are treated as property, the question of who owns them — and who may use them without paying — becomes an international matter with direct consequences for medicine, agriculture and the environment.
8.14.1 What Intellectual Property Rights Are
The basic idea
Ordinary property is rivalrous: if you are using a field, I cannot use the same field at the same time. Knowledge is different. If I invent a process and you learn it, we can both use it at once; my knowing it does not stop you from knowing it. This makes knowledge cheap to copy once created, and that is precisely the difficulty.
If anyone can copy an invention the moment it appears, the person who spent years and money developing it cannot recover that investment, because copiers who spent nothing can undercut them. The fear of this, the argument runs, would discourage people from investing in invention in the first place. Intellectual property rights are the response: legal rights that give the creator of a work or an invention exclusive control over its use for a limited period, so that the investment can be recovered.
The bargain
An intellectual property right is best understood as a bargain between the creator and society, with two sides.
Society grants the creator a temporary monopoly — the exclusive right to make, use or sell the protected thing for a fixed number of years. In return, the creator must disclose the invention publicly, so that others can learn from it, build on it, and use it freely once the term expires.
The bargain has a cost and a benefit, and both are real. The cost is the monopoly itself: while it lasts, the protected thing is more expensive and less available than it would be under free competition. The benefit is twofold — the incentive to create, and the disclosure of knowledge that would otherwise be kept secret. The whole of intellectual property policy is an attempt to set the terms of this bargain so that the benefit outweighs the cost. Too little protection and there is too little incentive; too much and society pays monopoly prices for too long.
Why this belongs in an environmental science course
The connection is not obvious until the specific categories are examined, but it is direct. When intellectual property rights extend to living things — seeds, plant varieties, medicines derived from natural compounds, biological material — they begin to determine who may use the biological resources of the environment, and on what terms. A farmer’s freedom to save seed, a country’s ability to make an affordable medicine, and the question of who benefits when a plant long used by a community becomes the basis of a patented product — all of these turn on intellectual property rules. That is why the subject appears here.
8.14.2 Categories of Intellectual Property Rights
The syllabus specifies six categories, each protecting a different kind of creation for a different purpose and period. A brief understanding of each is what is required.
The six categories
A patent protects an invention — a new and useful product or process that involves an inventive step. It gives the inventor the exclusive right to make, use and sell the invention for a limited term, commonly twenty years from the date of application, after which anyone may use it. In return the inventor must disclose fully how the invention works. Patents are the category with the sharpest consequences for medicines, seeds and industrial processes.
A copyright protects the expression of an idea in literary, artistic, musical or similar works — a book, a film, a song, a piece of software — not the idea itself. It arises automatically on creation and lasts for a long term, typically the life of the author plus several decades.
A trademark protects a sign, name, logo or symbol that distinguishes the goods or services of one enterprise from those of another. Its purpose is to identify origin and prevent confusion, and it can be renewed indefinitely as long as it remains in use.
An industrial design right protects the appearance of a product — its shape, pattern or ornamentation — as distinct from how it works. It protects the way a thing looks, for a limited term.
A geographical indication (GI) protects a name that identifies goods as originating in a particular place, where a given quality or reputation of the goods is essentially attributable to that origin. It is a collective right belonging to the producers of a region rather than to any single firm.
A trade secret protects confidential business information — a formula, a process, a method — that derives its value from being secret. Unlike a patent, it involves no disclosure and no fixed term; the protection lasts as long as the secret is kept.
Terms and conditions vary between countries; the table gives the common pattern, not the law of any particular country.
Geographical indications and the environment
Of the six, geographical indications have the most direct and positive environmental link, and it is worth drawing out.
A geographical indication ties a product’s identity and its market value to a specific place and, often, to a specific traditional way of producing it — a variety of rice, a type of tea, a craft using local materials. Because the right belongs collectively to the producers of that place and cannot be moved elsewhere, it can give a whole community an economic reason to maintain the practices, varieties and conditions that give the product its distinctive character. In this way a geographical indication can, in favourable cases, support the conservation of traditional crop varieties, local breeds and place-specific knowledge that a uniform global market would otherwise displace. It is one of the few intellectual property instruments whose logic works in favour of local diversity rather than against it.
Where intellectual property and the environment come into tension
Three tensions matter for this course, and each should be stated with both sides.
Medicines. A patent lets the inventor of a drug charge a monopoly price for the patent term, which rewards the very expensive research that produces new medicines. The same monopoly price can put a needed medicine out of reach in a poor country. The tension is real and not resolvable by slogan: without the reward, some medicines would not be developed; with it, some who need them cannot afford them. TRIPS itself contains flexibilities — notably compulsory licensing, under which a government may, in defined circumstances, permit production of a patented medicine without the patent holder’s consent — intended to soften this conflict, and their use is contested at every turn.
Seeds and farmers’ rights. When plant varieties can be protected as intellectual property, the developer of an improved variety gains a reward, which can encourage useful breeding. But if protection restricts the age-old practice of saving seed from one harvest to sow the next, and of exchanging seed among cultivators, it removes a freedom on which many small farmers depend and narrows the diversity of seed in use. Several countries, including India, have tried to hold both objectives together by recognising breeders’ rights and farmers’ rights side by side.
Bioprospecting and traditional knowledge. Many valuable compounds and crop traits derive from wild organisms, and knowledge of their uses often rests with communities who have used them for generations. When a firm from elsewhere derives a patented product from such a resource or such knowledge, the question arises of whether the country of origin and the community consented, and whether they share in the benefit. Obtaining a resource or the associated knowledge without consent or benefit-sharing is called biopiracy.
The international dimension, in brief
Two treaties predating TRIPS — one for industrial property and one for literary and artistic works, both dating from the nineteenth century — established the early framework of international cooperation on intellectual property. What TRIPS added, as section 8.13 explained, was a binding minimum standard tied to trade: a country that wants the benefits of the trading system must protect intellectual property to that standard, enforceable through the dispute system.
For a developing country the effect is double-edged, and both edges are real. Stronger and more predictable protection can attract investment and technology, and it protects the country’s own creators and its geographical indications abroad. It also raises the cost of protected medicines, technologies and seeds, and it extends ownership into biological areas — health, food, genetic resources — where the consequences reach well beyond commerce into the questions this course is concerned with. Which effect dominates depends on the country, the sector and the safeguards it builds into its own law, which is why India’s approach has been to comply with the international minimum while writing its domestic law to preserve as much room as the minimum allows.
8.15 International Aid
The chapter ends where the argument of section 8.5 pointed. If global environmental problems require action by countries that cannot afford it, and if the benefit of that action is shared by everyone, then transfers of money and technology from richer countries to poorer ones are not charity but part of the mechanism. Aid is the oldest and most contested of those transfers.
8.15.1 Aid and Aid Agencies
What counts as aid
Official development assistance (ODA) is the standard term for what is usually meant by aid: flows of finance from official sources — governments and multilateral institutions — to developing countries, provided on concessional terms and with the promotion of economic development and welfare as the main objective.
Two elements of that definition do the work. The purpose must be development, which excludes military assistance and ordinary commercial export credit. And the terms must be concessional — a grant, or a loan at below-market interest with a long repayment period. A loan on commercial terms is finance, not aid.
The forms it takes
Grants — money given without an obligation to repay.
Concessional loans — money lent at low interest over long periods, often with an initial period before repayment begins.
Technical assistance — expertise rather than money: engineers, trainers, advisers, scholarships, equipment supplied with the skills to use it. This is a large share of total aid and the hardest to value.
Food aid — supplied in emergencies, and formerly on a large scale as programme support.
Humanitarian and emergency relief — following earthquakes, cyclones, floods, drought and conflict.
Debt relief — cancelling or rescheduling debt already owed, which frees resources that would otherwise go to repayment.
Who provides it
Bilateral aid flows directly from one country’s government to another’s. It is usually administered by a dedicated development agency of the donor government, and it is the largest share of the total.
Multilateral aid flows through international institutions to which many countries contribute. The principal ones are the World Bank group and the regional development banks for Asia, Africa and Latin America, and the specialised agencies and programmes of the United Nations working on development, children, food and agriculture, health and the environment.
Two further channels matter for this course. Non-governmental organisations both receive aid and deliver it, often reaching places and communities that official programmes do not. And a growing volume of assistance now flows between developing countries — sometimes called South–South cooperation. India is a case in point: from the early 2000s it limited the range of bilateral donors from which it accepts assistance, and it has itself become a provider of development cooperation, particularly technical training, lines of credit and infrastructure support in Asia and Africa.
Environmental finance
A distinct category of transfer has grown from the argument of section 8.5. Where a country is asked to act for a global benefit — protecting a forest, phasing out a refrigerant, conserving a species-rich habitat — dedicated funds meet the additional cost of doing so. The Multilateral Fund under the Montreal Protocol, described in section 8.4.7, is the clearest example and the most successful. Similar funds exist for biodiversity, land degradation and climate change, and the payment mechanisms for reduced deforestation discussed in section 8.2.5 belong to the same family.
The reasoning behind all of them is worth stating plainly, because it distinguishes them from ordinary aid: the recipient is not being helped, it is being paid — to supply a service, the protection of a global common good, that the payer wants and cannot obtain any other way.
Diagram
Fig. 8.15-1 – sources and channels of international assistance: on the left, donor governments and their development agencies; in the centre, three channels — bilateral, multilateral institutions, and non-governmental organisations — plus a fourth marked “dedicated environmental funds”; on the right, the uses reached: infrastructure, health and education, agriculture, humanitarian relief, and global environmental commitments; the environmental-fund path drawn with a note reading “payment for a global benefit, not assistance”
8.15.2 Tied Aid and Untied Aid
The distinction
Tied aid is aid given on the condition that it is spent on goods and services purchased from the donor country, or from a restricted list of countries specified by the donor. The money is provided, but the recipient may not choose freely how to spend it.
Untied aid carries no such restriction. The recipient may procure goods and services from wherever it chooses, including from its own domestic suppliers.
Why aid gets tied
The donor’s reasons are not concealed and are not unreasonable on their own terms. Tying converts an outflow of public money into orders for the donor’s own firms, which makes an aid budget easier to defend politically at home; it introduces those firms to new markets; and it gives the donor confidence that the equipment supplied meets standards it recognises.
What tying costs the recipient
Three further costs follow.
Inappropriate technology. Equipment designed for the donor’s conditions may be poorly matched to the recipient’s climate, power supply, skills or maintenance capacity.
Dependence on the supplier. Spare parts, servicing and replacements must continue to come from the same source, often for decades after the aid ended.
Displacement of local capability. Where domestic firms could have supplied the goods, tying transfers the work abroad and denies local industry the experience and the order book that would have developed it.
Diagram
Fig. 8.15-2 – circular diagram of tied aid: donor government treasury → aid grant to recipient country → procurement contract restricted to donor-country suppliers → payment flows back to firms in the donor country → part returns to the donor treasury as tax; the recipient shown receiving the completed project, with a note beside it reading “smaller than the same sum untied would have bought”
The last row deserves attention, because it is the honest complication. Untied aid is better for the recipient rupee for rupee; but tied aid is easier for a donor government to persuade its own taxpayers to fund. A donor pressed to untie may respond by giving less. This is why the international effort to untie aid has proceeded by agreed recommendation among donors rather than by unilateral action — the share of aid that is untied has risen considerably over recent decades, with assistance to the poorest countries untied first.
8.15.3 Advantages and Limitations of Aid
The case for aid
It supplies what domestic saving cannot. A country with low incomes saves little, and so cannot finance the investment that would raise incomes. Aid can break that circle by supplying capital from outside.
It funds what markets will not. Rural roads, primary schools, immunisation, sanitation, drinking water and basic research yield large social returns and small commercial ones. Private finance does not build them; aid can.
It saves lives in emergencies. After an earthquake, a cyclone or a famine, external assistance arrives faster and in greater volume than a stricken country can mobilise alone. This is the least contested function of aid.
It transfers knowledge. Technical assistance carries skills, methods, standards and institutional practice that money alone does not buy.
It pays for global public goods. Where a poorer country is asked to bear a cost for a benefit that accrues worldwide, a transfer is the only mechanism that makes the request reasonable. The Montreal Protocol’s fund is the demonstration that this works.
It has measurable achievements. In specific sectors, particularly health, aid-supported programmes have contributed to well-documented gains — the eradication of smallpox, wide expansion of immunisation, reductions in deaths from malaria and from diarrhoeal disease.
The case against, and the qualifications
Debt. Aid given as concessional loans still has to be repaid. Where borrowed funds were spent on projects that did not generate returns, countries have been left servicing debt for decades, and debt relief programmes were needed to unwind it.
Volatility and unpredictability. Aid flows respond to donors’ domestic politics and budgets. A recipient cannot plan a ten-year programme on a commitment that may be revised in three.
Donor priorities. Aid follows the donor’s interests as well as the recipient’s needs — historical ties, strategic considerations, commercial opportunity. Allocation across countries has often correlated poorly with poverty.
Conditionality. Aid frequently comes with conditions attached — policy changes the recipient must make to receive it. Conditionality raises the sovereignty problem of section 8.5 in its sharpest form, since the country is not compelled but is not free either. Conditions may also be designed abroad on assumptions that fit the recipient’s circumstances imperfectly.
Administrative burden. A country with a small civil service may deal with dozens of donors, each with its own procedures, reporting formats and missions, consuming the very administrative capacity that aid is meant to strengthen.
Weak accountability. An agency is accountable to the taxpayers who fund it, not to the people it serves. Where a programme fails, those affected have little means of redress.
Environmental harm. Aid-funded projects have themselves caused significant environmental damage — dams, highways into forest frontiers, irrigation schemes that salinised land. The safeguard policies described above were adopted in response to precisely this record.
Aid is small relative to other flows. This is the qualification that puts all the others in proportion.
Where the evidence stands
Whether aid raises growth is one of the longest-running empirical arguments in development economics, and the honest summary is that it is not resolved. Studies find a positive effect in some periods and specifications and little effect in others, and the result depends heavily on the type of aid examined and on the quality of institutions in the receiving country. The evidence is considerably stronger for aid directed at specific measurable outcomes — vaccination coverage, school enrolment, disease control — than for aid intended to raise national income in the aggregate.
8.15.4 Re-orienting Aid: Aid versus Self-Reliance
The reforms that have been attempted
The criticisms above are well known to donors, and a series of international agreements from the mid-2000s onward set out principles intended to answer them. The main commitments are easy to state and hard to keep.
Ownership — the recipient country sets its own development priorities, and aid supports that plan rather than substituting a donor’s plan for it.
Alignment and use of country systems — donors channel support through the recipient’s own budget, procurement and audit systems, which strengthens those systems instead of bypassing them.
Harmonisation — donors coordinate, share reporting and reduce the number of separate missions and formats a recipient must handle.
Predictability — commitments are made over several years so that programmes can be planned.
Untying — as described in section 8.15.2.
Results and transparency — outcomes are measured and published, so that both donor publics and recipient citizens can see what was achieved.
Progress against these principles has been real but partial. Untying has advanced furthest; harmonisation and the use of country systems least, because donors remain answerable to their own auditors and parliaments for money spent through another government’s systems.
Aid or self-reliance
The deeper argument is whether aid should be the central instrument at all.
The case for self-reliance — building a country’s capacity to finance its own development from its own resources — rests on several observations. Aid is small beside trade, investment and remittances. It is unpredictable and comes with conditions. It can weaken the domestic accountability between a government and its taxpayers, since a government financed from abroad depends less on the consent of its own citizens for revenue. And no country has been lifted out of poverty principally by aid; the countries that transformed their positions did so through domestic investment, education and export growth.
On this view, what developing countries most need from richer ones is not assistance but fairer terms: market access without tariff escalation (section 8.9), reduction of the agricultural subsidies that undercut their farmers (section 8.13), technology on affordable terms, cooperation against tax avoidance (section 8.8), and an end to the export of hazardous waste (section 8.12). The slogan associated with this position — trade, not aid — is a simplification, but it identifies a real hierarchy of importance.
The case against treating self-reliance as sufficient is equally serious. The poorest countries, and those recovering from disaster or conflict, cannot generate the resources they need from within, whatever their policies. Humanitarian emergencies do not wait for domestic capacity. And, most relevant to this course, global environmental goods cannot be financed domestically by definition: a country asked to forgo income for a benefit that accrues to the world has no domestic source from which to fund that sacrifice, and no reason to make it unless someone pays. The Multilateral Fund did not succeed because it was charity; it succeeded because it was payment for a service the payers wanted.
What this chapter has argued
It is worth closing by drawing the whole chapter together in a sentence. Environmental problems cross borders; the governments that must solve them do not; and so every instrument that does cross borders — trade, investment, treaties, intellectual property, waste shipments, aid — becomes, whether or not it was designed to be, a part of environmental policy. Understanding those instruments is not a detour from environmental science. For problems of this scale, it is where the decisions are actually made.
8.16 Summary
Why environmental problems become international
- Environments are continuous while governments are bounded. Air, water, migratory species and traded goods all cross national borders, so a country cannot always protect itself by acting alone.
- Environmental problems become international by four routes: shared media such as the atmosphere and the ocean; global commons that lie outside all national jurisdiction; the movement of migratory organisms; and trade, which relocates the environmental cost of producing a good away from the place where it is consumed.
- Transboundary pollution originates in one country’s territory and causes damage in another’s. The global commons — the high seas, the atmosphere, Antarctica and outer space — belong to no state and are open in principle to all.
- Two properties decide whether a pollutant stays local: persistence, which allows it to travel far before breaking down, and bioaccumulation, the build-up of a substance in tissues when intake exceeds breakdown and excretion. Together they can raise a concentration of a few parts per trillion in seawater to parts per million in a top predator.
- Local, transboundary and global problems need different instruments. Global problems are hardest because of the free rider problem: a country that acts bears the whole cost and receives only a fraction of the benefit, while a country that does nothing still enjoys the improvement.
- The instrument used for global problems is the multilateral environmental agreement, which binds only the countries that ratify it and is held together by reputation, reciprocity, finance and, occasionally, trade sanctions.
Amazonia
- Tropical rainforests occupy roughly six per cent of the Earth’s land surface but are thought to hold more than half of all terrestrial species, in a dense web of specialised relationships.
- A standing rainforest is a carbon sink; felling and burning it releases that carbon. Rainforests also generate part of their own rainfall through evapotranspiration, so clearing removes some of the machinery that waters them.
- Rainforest soils are usually poor. In a warm, wet climate decomposition is rapid and nutrients are taken up almost immediately, so most of the ecosystem’s nutrient stock is held in the living vegetation, not the soil; heavy rain leaches what is not absorbed.
- A newly cleared plot yields well for two or three seasons because burning converts the biomass to fertilising ash. Once the ash is exhausted, yields fall and the cultivator moves on — which is why cleared rainforest regrows so slowly and so incompletely.
- Deforestation in the Amazon has several distinct drivers operating at different scales: selective logging and the roads it requires; conversion to cattle pasture and to commercial crops, chiefly soya, for distant markets; smallholder clearing by families with few alternatives; and mining, dams and highways, whose main effect is to open interior forest to everyone else.
- These drivers link into a self-reinforcing sequence: road, logging, burning, pasture, declining productivity, sale of degraded land to smallholders, and renewed clearing at the next frontier.
- Government policy shaped the outcome in both directions. Land titling that accepted clearing as evidence of productive use, subsidised credit for ranching and financed infrastructure accelerated loss; expanded protected areas and recognised indigenous territories, satellite monitoring, real enforcement and commodity buyers’ refusal to source from newly cleared land brought a steep fall in the Brazilian Amazon over roughly a decade from the mid-2000s.
- That fall was not permanent, and rates rose again in later years — evidence that it depended on sustained enforcement and market conditions rather than on any change in the underlying pressures.
- REDD+ pays forest countries for verified reductions in deforestation against a historical baseline; Brazil’s Amazon Fund, established in 2008, is the best-known example. The approach is criticised over baseline choice, leakage of clearing to other areas, and the difficulty of reaching the households at the frontier.
Trade in wildlife: ivory
- A tusk is an enlarged incisor rooted in the skull, so ivory cannot be harvested from a live elephant. Both sexes of African elephants carry tusks, which is why they have borne heavier commercial pressure than Asian elephants, in which only some males are tusked.
- The trade flourished because ivory is prestigious and easily carved, extremely valuable per unit weight and therefore easy to smuggle profitably, because colonial-era commercial hunting established the routes and markets, because rural incomes made poaching rational, and because any legal trade provided a laundering channel for illegal ivory.
- Elephants recover slowly: gestation lasts about 22 months, a single calf is normal, and first calving is usually in the female’s early teens.
- CITES, agreed in 1973 and in force from 1975, regulates international trade rather than hunting. Appendix I prohibits commercial international trade; Appendix II allows it under permit.
- The African elephant was moved to Appendix I in 1989 and international commercial ivory trade closed from January 1990. Poaching and prices fell sharply in the early 1990s and several populations stabilised or recovered.
- The ban has been supported by anti-poaching enforcement, systematic monitoring of illegal killing and of seizures, destruction of confiscated stockpiles, demand-reduction campaigns, community-based conservation, and closure of domestic ivory markets — most significantly China’s at the end of 2017.
- The policy remains contested between two conservation positions: prohibition, which is simpler to police but penalises countries that managed their populations well; and regulated sustainable use, which returns revenue to range states but may provide a laundering route. Two conditioned one-off stockpile sales were permitted, in 1999 and 2008.
- Poaching surged again from about 2008, driven by demand in East Asian markets, before easing following market closures and stronger enforcement. Prohibition displaces a trade rather than abolishing it, and shifts the enforcement burden onto the range states least able to fund it.
Ozone depletion
- Roughly nine-tenths of atmospheric ozone lies in the stratosphere, with the greatest concentration between about 20 km and 25 km. Total column ozone is measured in Dobson Units, where 1 DU is a layer 0.01 mm thick at standard temperature and pressure; a typical global value is about 300 DU, or roughly 3 mm of pure ozone.
- UV-A (315–400 nm) largely reaches the surface; UV-C (100–280 nm) is completely absorbed; UV-B (280–315 nm) is the band whose arrival depends on how much ozone stands overhead. A one per cent fall in column ozone raises surface UV-B by roughly one to two per cent.
- Chapman’s cycle, set out by Sydney Chapman in 1930, describes ozone as a dynamic equilibrium: oxygen is split by ultraviolet below about 242 nm; atomic oxygen combines with O₂ in the presence of a third body to form ozone; ozone is photolysed by ultraviolet at roughly 200–310 nm; and an oxygen atom reacting with ozone returns two oxygen molecules.
- The middle two steps form a null cycle producing no net change in ozone, but converting ultraviolet into heat — which is how the layer shields the surface while regenerating itself.
- Chapman’s scheme alone predicts more ozone than is observed. The missing removal comes from catalytic cycles involving nitrogen oxides, hydroxyl radicals, chlorine and bromine, in which a single chlorine atom destroys ozone molecules of the order of a hundred thousand times before being locked into a reservoir species such as HCl or ClONO₂.
- Chlorofluorocarbons reached the stratosphere precisely because they were designed to be stable, non-toxic and insoluble; nothing removed them from the lower atmosphere, and the intense short-wavelength ultraviolet found only at altitude finally released their chlorine.
- The six ozone depleting substances of the syllabus are halons (fire suppression), carbon tetrachloride (solvent and feedstock), CFCs (refrigerants, propellants, foam blowing, solvents), methyl chloroform (industrial solvent), methyl bromide (fumigant) and HCFCs (transitional refrigerants).
- Atmospheric lifetimes differ enormously — under a year for methyl bromide, about 5 years for methyl chloroform, about 26–30 years for carbon tetrachloride, about 50–55 years for CFC-11 and about 100 years for CFC-12 — which is why the layer recovers slowly even though production stopped decades ago. Ozone depletion potential is measured relative to CFC-11 = 1, with halons the highest and HCFCs the lowest.
- The Antarctic ozone hole is a seasonal thinning below 220 DU appearing each southern spring. It requires four conditions: the polar vortex isolating the air; temperatures below about −78 °C forming polar stratospheric clouds; reactions on those cloud surfaces converting reservoir species into forms sunlight can split, while nitric acid is removed with settling particles; and the return of spring sunlight, which releases the accumulated chlorine all at once.
- The Arctic shows the same chemistry far more weakly, because its stratosphere is warmer and its vortex less stable.
- Increased UV-B raises the incidence of skin cancers and of cataract, suppresses immune response, reduces growth in many plants, damages phytoplankton at the base of marine food chains, degrades outdoor materials, and accelerates the formation of ozone near the ground, where ozone is a pollutant rather than a shield.
- The Vienna Convention of 1985 established cooperation; the Montreal Protocol of 1987, in force from 1989 and tightened by amendment at London, Copenhagen, Montreal, Beijing and Kigali, imposed binding phase-out schedules.
- The Protocol succeeded because it started modestly and tightened as evidence accumulated, granted developing countries a grace period, created a Multilateral Fund in 1990 to meet their conversion costs, and restricted trade with non-parties so that staying outside carried a cost. It was also helped by a small number of producers and affordable substitutes.
- The Kigali Amendment of 2016, in force from 2019, phases down hydrofluorocarbons, which deplete no ozone but are potent greenhouse gases — a substitute chosen for one problem that created another.
- The Montreal Protocol is ratified by every country. Concentrations of controlled substances have fallen since the 1990s and the layer is assessed as recovering, with return to 1980 conditions expected around mid-century and later over Antarctica.
Sovereignty and international politics
- There is no world government. Every international obligation exists because states negotiated it, signed it and ratified it, and each remains free to refuse.
- Sovereignty over natural resources gives each country authority over what it mines, fells, dams and grows. The no-harm rule requires that activities within a country’s jurisdiction not damage the environment of other states or of areas beyond national jurisdiction. The two principles collide constantly, and nothing decides between them except negotiation.
- A treaty is negotiated, adopted, signed and then ratified under each country’s own constitutional procedure, entering into force only when a set number of ratifications is reached; obligations are then carried out through national law. The common design is a framework convention followed by protocols carrying binding commitments.
- Resistance to environmental commitments is structural rather than merely short-sighted: costs are concentrated, immediate and organised, while benefits are diffuse, delayed and shared with countries that paid nothing. The competitiveness concern — that strict standards in one country relocate production rather than prevent pollution — is genuine, which is why agreements covering all significant producers succeed where unilateral action struggles.
- The North–South division rests on real arguments on both sides: historical accumulation and consumption per person on one, and the arithmetic that a global problem cannot be solved while the fastest-growing sources are exempt on the other. The agreed compromise is common but differentiated responsibilities — shared obligation, differing by contribution to the problem and capacity to act — whose application is disputed at every negotiation.
- The Stockholm Conference of 1972 and the Rio Earth Summit of 1992 established the vocabulary of international environmental politics, and Rio opened the framework conventions on climate change and biological diversity for signature.
Trade theory
- Absolute advantage means producing more of a good from the same resources. Comparative advantage means producing it at a lower opportunity cost, and every country has a comparative advantage in something, however unproductive in absolute terms.
- In the worked example, Country A held an absolute advantage in both goods, yet specialisation according to comparative advantage raised combined output from 1500 units of cloth and 2500 tonnes of rice to 1500 units of cloth and 3000 tonnes of rice, from the same 200 workers.
- Comparative advantage concerns aggregate output only. It says nothing about distribution, assumes resources move easily between industries, and treats environmental damage as costless — so a country can appear to gain from trade while depleting the assets that produced the gain.
- Free trade is a policy of no artificial restriction, with imported goods treated no less favourably than domestic ones. Its advantages are efficient resource use, cheaper goods and wider choice, larger markets, competitive discipline and the diffusion of technology.
- Its disadvantages are that gains are aggregate rather than universal, that unequal starting positions disadvantage young industries, that primary exporters may face adverse terms of trade, that specialised economies are exposed to external shocks, that dumping can eliminate local producers, and that prices exclude environmental costs — so trade may direct production to wherever damage is least accounted for.
- Trade affects the environment through three channels: a scale effect from greater total production and freight, a composition effect that relocates where damage occurs, and a technique effect through which cleaner technology and higher incomes spread. The net outcome depends on sector, country and regulation.
- Protectionism restricts imports to shelter domestic producers. A tariff taxes each unit imported and yields revenue to the government; a quota fixes the quantity and hands the extra payment to the licence holder. Non-tariff barriers include technical standards, licensing, anti-dumping duties, subsidies, procurement preference and exchange rate policy.
- Protection is defended for infant industries, employment, revenue, strategic self-sufficiency, prevention of dumping and maintenance of standards; it is criticised for raising consumer prices, entrenching inefficiency, cascading costs into user industries, provoking retaliation and encouraging rent-seeking.
- The infant industry argument is theoretically sound and historically supported, but “temporary” protection is politically difficult to withdraw once granted.
- India followed import substitution after independence, building a broad industrial base at the cost of high prices, limited choice and slow export growth, and liberalised from 1991. Both the achievements and the costs are documented, and the balance between them is debated.
- Where a country restricts imports made by methods it prohibits at home, the measure may be genuine environmental protection or disguised protectionism; trade law has addressed such disputes case by case, scrutinising whether the measure is applied even-handedly.
Globalisation
- Globalisation is the process of international integration through cross-border flows of goods and services, capital and investment, people, and knowledge, technology and ideas.
- Long-distance exchange is ancient; what distinguishes the present phase is the global supply chain, in which the making of a single ordinary object is split between countries. It was made possible by containerisation, near-free communication and policy liberalisation from the 1980s.
- Freight by sea emits of the order of a tenth or less per tonne-kilometre of what road transport emits, and a very small fraction of air freight — which is why distance travelled is a poor guide to a product’s footprint, and why production method usually matters more than origin.
- Negative integration removes barriers; positive integration harmonises rules, and raises sovereignty questions far more sharply. Globalisation is broader than free trade, which is only a policy about goods.
- Its advantages include more productive use of resources, lower prices and wider choice, capital reaching countries short of it, rapid diffusion of technology including environmental technology, employment in export sectors, pooling of supply risk, and the connections that make coordinated environmental action possible.
- Its disadvantages include unequal gains between and within countries, transmission of distant shocks, pressure on smaller producers, reduced policy room for governments, loss of local diversity including crop varieties, greater total resource use, and the separation of consumers from the consequences of what they buy.
- The pollution haven hypothesis — that firms relocate polluting production to weakly regulated countries — has partial support in a few heavily polluting industries and weak support elsewhere, since compliance costs are usually small beside labour, market access and infrastructure.
- “Third world” is a Cold War term for countries aligned with neither power bloc, now used loosely for the poorer countries of Asia, Africa and Latin America; current writing more often says developing countries or the Global South.
Transnational companies
- A transnational company owns or controls operations in more than one country, with a headquarters in one and subsidiaries in others. Foreign direct investment is the establishment or acquisition of lasting productive assets abroad.
- Firms operate across borders for market access, resources, lower production costs, avoidance of trade barriers, elimination of competition, and tax, the last through transfer pricing, which determines in which country profit is recorded.
- The chartered trading companies of the seventeenth and eighteenth centuries were early transnational enterprises that also acquired governmental powers. The colonial economy exported raw materials and imported manufactures, reorganised land revenue to compel production for the market, contributed to the deindustrialisation of Indian handicraft manufacturing, built railways towards ports rather than between interior centres, and brought forests under state control primarily for timber while restricting customary access.
- Four legacies persist: primary-weighted export composition, port-oriented infrastructure, inherited land and forest law, and regional specialisation in single commercial crops. Historical explanation is not the same as attribution of blame, and decisions taken since independence have mattered at least as much.
- The conflict of interest between a transnational company and a host country arises from four asymmetries: the firm can move and the environment cannot; investment horizons are far shorter than environmental ones; the firm knows its own process better than the regulator does; and a subsidiary is a separate legal person, so cross-border liability is slow and uncertain.
- The gas release at Bhopal in December 1984, in which methyl isocyanate escaped from a pesticide plant operated by a subsidiary of a foreign parent company, killed thousands and injured far more. A settlement of US$470 million was reached in 1989, criminal proceedings continued for many years, and responsibility for remediating soil and groundwater contamination has remained disputed. India subsequently strengthened its law on hazardous industry.
- Transnational companies also bring capital, advanced and often cleaner technology, training and global specifications that frequently exceed local legal minimums, and their visibility makes them responsive to public pressure in a way anonymous local producers are not.
Trade between unequal partners
- Primary commodities have volatile prices, because demand and supply both respond weakly to price so the whole adjustment falls on price. Many small sellers facing few large buyers means the price settles closer to the buyers’ preference.
- Tariff escalation — duties rising with the degree of processing — keeps processing, and the value and employment it carries, in the importing country while the exporting country retains the land use and the waste. Non-tariff requirements have a similar effect where tariffs have gone.
- The terms of trade is the ratio of a country’s export price index to its import price index, expressed relative to a base year. A fall means more must be exported to buy the same imports.
- In the worked example, export prices rose 20 per cent while import prices rose 50 per cent, so the terms of trade fell from 100 to 80 — a deterioration of 20 per cent requiring 25 per cent more export volume for the same imports, and therefore 25 per cent more extraction.
- The Prebisch–Singer hypothesis, advanced independently by Raúl Prebisch and Hans Singer around 1950, holds that primary commodity prices decline in the long run relative to manufactures. The evidence is mixed and period-dependent; volatility is better established than trend.
- Open-cast mining strips the overburden to reach a near-surface deposit. Its costs are the land and overburden removed, lowering of the water table by dewatering, dust from blasting and haulage, and acid mine drainage where sulphide-bearing rock is exposed — which can continue for decades after closure.
- Export agriculture raises irrigation, fertiliser and pesticide intensity and favours monoculture; export fisheries can turn a renewable stock into a depleting one; the country receives a market price and gives up an asset that was never priced.
India’s trade
- India imports crude petroleum, coal, gold, machinery, electronics, fertilisers and edible oils, and exports refined petroleum products, gems and jewellery, pharmaceuticals, engineering goods, textiles, chemicals, rice, spices and marine products, along with large exports of software and business services.
- India runs a persistent merchandise trade deficit, partly offset by services exports and remittances. Service exports are the least materially intensive way an economy has found to earn foreign exchange.
- The balance of payments records all transactions with the rest of the world; foreign exchange reserves bridge the gap, and are measured in weeks or months of imports they would cover.
- The rupee was devalued substantially in 1966. In 1991, a widening current account deficit financed by short-term borrowing, the oil price rise during the Gulf conflict, falling remittances and credit downgrades reduced reserves to a few weeks of imports; India borrowed from the International Monetary Fund, pledged gold and devalued in two steps in July 1991, and liberalisation followed.
- The export imperative is the standing pressure to maximise foreign exchange earnings, which directs production towards whatever earns abroad soonest regardless of domestic resource cost. It shows in mineral extraction booms, in water-intensive crops grown for export, and in coastal aquaculture.
- Virtual water is the water embodied in a traded commodity. Producing one kilogram of rice takes water of the order of a few thousand litres, so a tonne exported carries a few million litres of Indian groundwater that appears nowhere on the invoice.
- Export shrimp farming expanded rapidly along India’s coasts from the late 1980s. Saline seepage affected adjoining fields and drinking-water wells, mangrove was cleared in places, nutrient-rich effluent entered creeks, and viral disease outbreaks caused widespread pond abandonment. Costs fell largely on people who received none of the earnings.
- A Supreme Court judgment of 1996 restricted intensive shrimp farming within the Coastal Regulation Zone and directed that a regulatory authority be created; the Coastal Aquaculture Authority Act, 2005 established it. Importing countries’ residue standards obliged changes in chemical and antibiotic use.
- The aquaculture case shows free trade working in both directions: it transmitted a distant consumer preference into an Indian land-use decision faster than any domestic process could respond, and later transmitted a discipline back through rejected consignments. A market disciplines only what its buyers can see.
Scarcity and allocation
- The basic economic problem is that wants are unlimited while resources are scarce, so choices must be made. Opportunity cost is the value of the next best alternative forgone, and much environmental degradation is opportunity cost that nobody added up.
- A free good is available at no cost because it is abundant relative to demand. Clean air, clean water and an undamaged coastline have moved from free goods to scarce resources while continuing to be used as though they were free.
- Every economy must settle what to produce, how to produce and for whom. “How” is where the environment enters, since the same output can be produced by a clean process or a dirty one, and a decision made on financial cost alone selects the cheaper regardless of unpriced damage.
- Markets misallocate environmental resources for two reasons: externalities, where a cost falls on people outside the transaction and outside its price; and open access, where a resource owned by none is over-used because each user gains the whole benefit of using more while the cost of depletion is shared.
- Garrett Hardin’s tragedy of the commons describes open-access resources without rules. Elinor Ostrom’s later work showed that communities can and do govern shared resources sustainably through their own institutions — the problem is the absence of rules, not shared ownership.
- Total environmental pressure is roughly population multiplied by consumption per person multiplied by the resource intensity of each unit, so population and consumption are two factors in one product rather than competing explanations. Consumption per person is highly unequal between countries and is rising fastest in populous countries that were until recently poor.
- The ecological footprint expresses a population’s consumption and waste absorption as an area of biologically productive land and sea in global hectares, compared against available biocapacity. It is an estimate dependent on assumptions, useful for putting consumption on a common scale.
The toxic waste trade
- Hazardous waste is waste that is toxic, corrosive, flammable, reactive, infectious or radioactive enough to threaten health or the environment if improperly managed. The toxic waste trade is its movement across borders, nominally for treatment or recycling.
- The trade is driven by a cost gap: safe disposal is expensive where regulation is strict, and acceptance is cheap where it is weak. The trade became a distinct international issue in the 1980s as regulation tightened in industrialised countries.
- Electronic waste is the fastest-growing category and is both a genuine resource, containing recoverable metals, and a genuine hazard, containing lead, mercury, cadmium and brominated flame retardants released when it is burnt or broken up without controls.
- The trade is sustained by the persistent cost gap, mislabelling of consignments as goods for reuse or material for recycling, weak inspection capacity at ports, genuine local demand from people who earn a living dismantling waste, and corruption.
- Impacts on receiving countries include exposure of unprotected workers to heavy metals and combustion products, contamination of soil and groundwater that persists for decades, entry of persistent substances into the food chain, and loss of the productive use of land and water. Those who receive the acceptance fee are rarely those who bear the exposure.
- The Basel Convention, adopted in 1989 and in force from 1992, does not ban the trade but controls it by prior informed consent: no consignment may move without the importing country being notified and consenting in writing. The Basel Ban Amendment of 1995, prohibiting hazardous waste exports from wealthier industrialised countries altogether, entered into force only in 2019.
- The Bamako Convention, adopted in 1991 and in force from 1998, is a stricter regional treaty among African countries prohibiting the import of hazardous waste, including radioactive waste, into Africa; it arose from dissatisfaction with Basel’s permissiveness.
- Extended Producer Responsibility places responsibility for a product’s end-of-life management on its producer, internalising the disposal cost into the design decision. India applies the principle through its rules on electronic waste and on plastic waste.
Trade regimes
- GATT came into effect in 1948 as an agreement rather than an organisation, reducing tariffs through successive negotiating rounds. It covered goods but not services or intellectual property, largely excluded agriculture, and had a weak dispute procedure.
- The Uruguay Round of 1986–1994 brought agriculture, textiles, services and intellectual property into the system and created a permanent institution. The WTO was established by the Marrakesh Agreement of 1994 and began operating on 1 January 1995, with GATT continuing as its agreement on goods. India is a founding member.
- Most Favoured Nation treatment requires that any advantage granted to one member be granted to all. National Treatment requires that imported goods, once inside a market, be treated no less favourably than equivalent domestic goods.
- The WTO administers the agreements, provides the negotiating forum, reviews trade policies, offers technical assistance, and operates a binding dispute settlement system that can authorise retaliation. Its round launched in 2001 remains substantially unresolved.
- A general exceptions provision permits measures necessary to protect human, animal or plant life or health and measures relating to the conservation of exhaustible natural resources, provided they are not arbitrary or unjustifiable discrimination or a disguised restriction on trade. Genuine, even-handed environmental measures have generally been upheld; discriminatory ones have not.
- TRIPS sets minimum standards of intellectual property protection. It raises the questions of patenting living material and seeds, of access to traditional knowledge, and of the price of medicines; its flexibilities allow protection of plant varieties by a country’s own system and, in defined circumstances, authorisation of a patented medicine without the holder’s consent.
- TRIMS limits trade-distorting conditions on foreign investment, such as local content and export requirements, narrowing tools by which host countries directed investment towards domestic capability.
- The Agreement on Agriculture disciplines market access, domestic support and export subsidies. Rich-country subsidies can undercut developing-country farmers in their own markets, while developing countries argue for room to support farmers and hold food security stocks.
- For India, WTO membership secured rule-based market access and recourse to dispute settlement, obliged product patents on pharmaceuticals from 2005 with safeguards against patenting minor modifications and provision for compulsory licensing, prompted a plant variety law recognising farmers’ rights alongside breeders’, and constrained some agricultural support instruments. The net environmental effect is sector-specific and disputed.
Intellectual property rights
- Intellectual property rights grant a creator exclusive control over an invention, work, design or symbol for a defined period. They trade wider present access for a stronger future incentive to create.
- They matter environmentally because ownership has extended to living material — organisms, genes, plant varieties — while the biological raw material is concentrated in tropical countries and the capacity to patent it in a few wealthy ones.
- The six categories are: patents, for novel and inventive products or processes, typically about twenty years from filing, in return for public disclosure; copyrights, for original works, generally for the author’s life plus a period; trademarks, for signs identifying the source of goods, renewable indefinitely; industrial design rights, for the appearance of a product; geographical indications, for place-of-origin names whose quality is due to that origin; and trade secrets, for confidential commercial information, lasting as long as secrecy does.
- A patent grants a private monopoly to a single holder and can restrict traditional users; a geographical indication grants a collective right to all genuine producers of a region and protects a place-based tradition. Both are intellectual property, pulling in nearly opposite directions.
International aid
- Official development assistance is finance from official sources to developing countries, on concessional terms, with development and welfare as its principal purpose. It takes the form of grants, concessional loans, technical assistance, food aid, emergency relief and debt relief.
- Bilateral aid flows government to government; multilateral aid flows through institutions such as the World Bank, the regional development banks and United Nations agencies. Non-governmental organisations and South–South cooperation are further channels; India both limited the bilateral donors it accepts and became a provider of development cooperation.
- Dedicated environmental funds, of which the Montreal Protocol’s Multilateral Fund is the clearest success, are not assistance but payment: the recipient is paid to supply a global benefit the payer cannot obtain otherwise.
- Tied aid must be spent on goods and services from the donor country or a specified list; untied aid may be spent anywhere. Tying suits donors politically and commercially, but raises project costs by removing competition, may supply technology unsuited to local conditions, creates dependence on the supplier for parts and servicing, and displaces local industry.
- Untied aid delivers more per unit but has a weaker political constituency in donor countries, which may reduce the volume offered. The untied share has risen substantially over recent decades, with aid to the poorest countries untied first.
- Aid’s advantages are that it supplies capital domestic saving cannot, funds what markets will not, saves lives in emergencies, transfers knowledge, and pays for global public goods; its achievements are clearest in health.
- Its limitations are debt where loans were unproductive, volatility, allocation by donor priorities, conditionality and its sovereignty implications, administrative burden on small civil services, weak accountability to recipients, and environmental harm from projects it financed in earlier decades. Evidence that aid raises aggregate growth is contested; evidence for specific measurable outcomes is stronger.
- For most developing countries, export earnings and remittances each exceed aid received, generally by a wide margin.
- Reform commitments centre on recipient ownership, alignment with country systems, harmonisation among donors, predictability, untying, and published results. Untying has advanced furthest, use of country systems least.
- Self-reliance is the objective and aid one instrument towards it; the test of a good aid programme is whether it leaves the recipient more capable of doing without it. Fairer trade terms, technology on affordable terms and cooperation on tax matter more in volume than aid — but the poorest countries, emergencies, and global environmental goods cannot be financed domestically by definition.
- The chapter’s central argument: environmental problems cross borders while the governments that must solve them do not, so every instrument that crosses borders — trade, investment, treaties, intellectual property, waste shipments and aid — becomes part of environmental policy whether or not it was designed to be.
8.17 Key Terms
- Absolute advantage — the ability of a country to produce more of a good from the same resources than another country can.
- Acid mine drainage — acidic, metal-bearing water produced when sulphide-bearing rock exposed by mining reacts with air and water; it can continue for decades after a mine closes.
- Agreement on Agriculture (AOA) — the WTO agreement governing trade in agricultural products, covering market access, domestic support and export subsidies.
- AOA — Agreement on Agriculture.
- Balance of payments — the systematic record of all transactions between the residents of a country and the rest of the world over a period.
- Basel Ban Amendment — the 1995 amendment to the Basel Convention prohibiting hazardous waste exports from wealthier industrialised countries to others; it entered into force in 2019.
- Basic economic problem — that human wants are unlimited while the resources to satisfy them are scarce, so choices must be made.
- Bilateral aid — assistance flowing directly from one country’s government to another’s.
- Bioaccumulation — the build-up of a substance in an organism’s tissues when intake exceeds the rate of breakdown and excretion.
- Biocapacity — the area of biologically productive land and water actually available to supply resources and absorb wastes.
- Carbon sink — a store, such as a standing forest, that holds carbon out of the atmosphere.
- Certification — verification by an independent body that a product was produced to a defined standard.
- CFC — chlorofluorocarbon; a stable, unreactive compound formerly used as a refrigerant, aerosol propellant, foam-blowing agent and solvent, and the largest single contributor to ozone depletion.
- CITES — Convention on International Trade in Endangered Species of Wild Fauna and Flora.
- Coastal aquaculture — the farming of aquatic organisms in coastal waters or in ponds constructed in the coastal zone.
- Common but differentiated responsibilities — the principle that all states share the obligation to protect the global environment, but that each state’s obligation varies with its contribution to the problem and its capacity to act.
- Comparative advantage — the ability of a country to produce a good at a lower opportunity cost than another country.
- Conditionality — the attachment of policy conditions that a recipient country must meet in order to receive aid.
- Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) — the international agreement, in force from 1975, that regulates cross-border trade in listed species through its Appendices.
- Copyright — the exclusive right of the creator of an original literary, artistic or similar work to reproduce, distribute and adapt it, generally for the creator’s life plus a period of years.
- Deforestation — the permanent removal of forest cover and its conversion to another land use.
- Deindustrialisation — a fall in the share of a population employed in manufacturing, as occurred in Indian handicraft production during the colonial period.
- Devaluation — a deliberate reduction in the official value of a currency against others, making exports cheaper abroad and imports dearer at home.
- Dispute settlement — the WTO procedure by which one member formally challenges another’s trade measures before panels whose rulings are binding.
- Dobson Unit (DU) — the unit of total column ozone; 1 DU corresponds to a layer of pure ozone 0.01 mm thick at standard temperature and pressure.
- DU — Dobson Unit.
- Dumping — selling exports below cost or below the price charged at home, often to eliminate competing producers in the importing market.
- Ecological footprint — the area of biologically productive land and water, in global hectares, needed to supply a population’s consumption and absorb its wastes at prevailing technology.
- Electronic waste (e-waste) — discarded electrical and electronic goods, containing both recoverable metals and hazardous substances such as lead, mercury and cadmium.
- EPR — Extended Producer Responsibility.
- Evapotranspiration — the return of water to the atmosphere from soil and from plants through their leaves.
- Export imperative — the standing pressure on a country to maximise foreign exchange earnings, directing production towards whatever earns abroad most readily regardless of domestic resource cost.
- Extended Producer Responsibility (EPR) — the principle that a producer’s responsibility for a product extends to its safe management once it becomes waste.
- Externality — a cost or benefit of an activity that falls on people who are not party to the transaction and is not reflected in its price.
- FDI — foreign direct investment.
- Foreign direct investment (FDI) — investment by which a firm establishes or acquires lasting productive assets in another country.
- Foreign exchange reserves — the stock of foreign currency held by a central bank, usually expressed as the number of weeks or months of imports it would cover.
- Forest degradation — the opening and drying of a forest’s canopy and interior, short of outright clearance, which leaves it far more vulnerable to fire and later clearing.
- Free good — a good available at no cost because it is abundant relative to demand, so that using it deprives no one.
- Free rider problem — the difficulty that arises when a benefit is shared whether or not a party paid for it, so that each party has a reason to let others act.
- Free trade — a commercial policy under which goods and services move between countries without tariffs, quotas or other artificial barriers, and imported goods are treated no less favourably than domestic ones.
- GATT — General Agreement on Tariffs and Trade.
- General Agreement on Tariffs and Trade (GATT) — the agreement in effect from 1948 that reduced tariffs through successive negotiating rounds and now continues as the WTO’s agreement on trade in goods.
- Geographical indication (GI) — protection of a name identifying a product as originating in a particular place, where its quality or reputation is essentially due to that origin.
- GI — geographical indication.
- Global commons — resources lying beyond the jurisdiction of any single country — the high seas, the atmosphere, Antarctica and outer space — and open in principle to all.
- Global hectare — a hectare of world-average biological productivity, the unit in which the ecological footprint is expressed.
- Global supply chain — the arrangement by which the making of a single product is split into stages located in different countries.
- Globalisation — the process of international integration through cross-border flows of goods and services, capital and investment, people, and knowledge, technology and ideas.
- HCFC — hydrochlorofluorocarbon; a transitional substitute for CFCs, largely destroyed in the lower atmosphere and therefore much less damaging, but still being phased out.
- HFC — hydrofluorocarbon; a chlorine-free replacement that depletes no ozone but is a potent greenhouse gas, brought under phase-down by the Kigali Amendment.
- Import substitution — a strategy of building domestic capacity to produce goods previously imported, behind tariffs and import licensing.
- Industrial design right — protection of the appearance of a product — its shape, pattern or ornamentation — as distinct from how it works.
- Infant industry argument — the case for temporarily protecting a new industry until it has grown and gained the experience to compete unaided.
- Intellectual property — a creation of the mind, such as an invention, work, design, name or symbol, over which the law grants exclusive rights.
- Intellectual property rights (IPR) — the legal rights giving a creator exclusive control over the use, reproduction or commercial exploitation of a creation for a defined period.
- International trade — the exchange of goods and services across national borders.
- IPR — intellectual property rights.
- Leaching — the removal of nutrients or other soluble substances from soil by water percolating through it.
- MFN — Most Favoured Nation.
- Most Favoured Nation (MFN) — the principle that a trade advantage granted by a WTO member to any one country must be extended equally to all other members.
- Multilateral aid — assistance channelled through international institutions to which many countries contribute.
- Multilateral environmental agreement — a treaty among many countries setting out shared environmental obligations, usually with a timetable, reporting and assistance for poorer members.
- National Treatment — the principle that imported goods, once inside a market, must be treated no less favourably than equivalent domestic goods.
- Non-tariff barrier — any restriction on imports other than a tariff, such as licensing, technical standards, anti-dumping duties, subsidies or procurement preference.
- ODA — official development assistance.
- ODP — ozone depletion potential.
- ODS — ozone depleting substance.
- Official development assistance (ODA) — concessional finance from governments and official agencies to developing countries, with development and welfare as its principal purpose.
- Open-cast mining — extraction of a near-surface deposit by stripping away the overlying material rather than tunnelling to reach it.
- Opportunity cost — the value of the next best alternative forgone when a resource is used in a particular way.
- Ozone depleting substance (ODS) — a compound stable enough to reach the stratosphere and release chlorine or bromine when broken down there.
- Ozone depletion potential (ODP) — a measure of the total ozone damage caused by unit mass of a substance released, relative to CFC-11, which is assigned the value 1.
- Ozone hole — the severe seasonal thinning of total column ozone below 220 DU that appears over Antarctica each southern spring.
- Ozone layer — the region of the stratosphere, roughly 15–35 km up and most concentrated between about 20 km and 25 km, in which ozone absorbs most incoming UV-B.
- Patent — the exclusive right to make, use and sell a novel, inventive and industrially applicable product or process, commonly for twenty years from filing, granted in return for public disclosure.
- Poaching — the illegal killing or capture of wild animals.
- Pollution haven hypothesis — the proposition that firms relocate pollution-intensive production to countries with weaker environmental regulation; the evidence for it is mixed.
- Primary commodity — a product sold essentially in the form in which it is extracted or harvested, such as ore, crude oil, cotton, timber or fish.
- Protectionism — a commercial policy of restricting imports in order to shelter domestic producers from foreign competition.
- Quota — a direct limit on the physical quantity of a good that may be imported in a given period.
- Ratification — the formal step, taken under a country’s own constitutional procedure, by which it accepts a treaty as legally binding on itself.
- REDD+ — Reducing Emissions from Deforestation and forest Degradation.
- Reducing Emissions from Deforestation and forest Degradation (REDD+) — an international framework under which forest countries receive payments for verified reductions in clearing, measured against a historical baseline.
- Regulatory arbitrage — the practice of locating an activity where regulation is weakest in order to reduce compliance costs.
- Scarcity — the condition of a resource being insufficient to satisfy every use it would be put to at a price of zero.
- Self-reliance — the building of a country’s capacity to finance and direct its own development from its own resources.
- Slash-and-burn cultivation — clearing vegetation, burning it and cropping the plot for a few seasons before leaving it to recover; stable at low density with long recovery periods, destructive without them.
- Sovereignty — the principle that a state has supreme authority within its own territory and is not subject to any external authority without its consent.
- Stratosphere — the atmospheric layer extending from about 10 km to about 50 km above the surface, containing roughly nine-tenths of atmospheric ozone.
- Tariff — a tax levied on an imported good.
- Tariff escalation — the practice of setting import duties that rise with the degree of processing, discouraging exporters from adding value at home.
- Terms of trade — the ratio of a country’s export price index to its import price index, expressed relative to a base year.
- Third world — a Cold War term for countries aligned with neither power bloc, now used loosely for the poorer countries of Asia, Africa and Latin America; more usually called developing countries or the Global South.
- Tied aid — assistance that must be spent on goods or services from the donor country or a specified group of countries.
- TNC — transnational company.
- Toxic waste — waste that is toxic, corrosive, flammable, reactive, infectious or radioactive enough to threaten health or the environment if improperly managed.
- Toxic waste trade — the movement of hazardous waste across national borders, nominally for treatment, disposal or recycling.
- Trade secret — confidential commercial information that confers advantage because it is not known to others; protected indefinitely while it remains secret, but only against improper acquisition.
- Trade-Related Aspects of Intellectual Property Rights (TRIPS) — the WTO agreement setting minimum standards of intellectual property protection for members.
- Trade-Related Investment Measures (TRIMS) — the WTO agreement limiting trade-distorting conditions that a country may attach to foreign investment.
- Trademark — a sign, name or logo that identifies the goods or services of one enterprise and distinguishes them from others; renewable indefinitely while in use.
- Tragedy of the commons — the over-exploitation of a resource open to all and governed by no rules, because each user gains the whole benefit of using more while the cost of depletion is shared.
- Transboundary pollution — pollution generated within one country’s territory that causes damage in another’s.
- Transfer pricing — the prices at which the units of a single firm sell to one another across borders, which determine in which country its profit is recorded.
- Transnational company (TNC) — a firm that owns or controls operations in more than one country, with a headquarters in one and subsidiaries in others.
- TRIMS — Trade-Related Investment Measures.
- TRIPS — Trade-Related Aspects of Intellectual Property Rights.
- Untied aid — assistance carrying no restriction on where the recipient may procure goods and services.
- UV — ultraviolet; solar radiation divided into UV-A (315–400 nm), UV-B (280–315 nm) and UV-C (100–280 nm).
- Virtual water — the volume of water used in producing a commodity, regarded as embodied in it when it is traded.
- World Trade Organisation (WTO) — the intergovernmental organisation administering the rules of international trade, established by the Marrakesh Agreement of 1994 and operating from 1 January 1995.
- WTO — World Trade Organisation.
8.18 Points to Ponder
The Montreal Protocol worked partly because the controlled chemicals were made by a small number of firms, affordable substitutes existed, and the science pointed to one identifiable class of compounds. If a global environmental problem has none of those features — millions of sources, no cheap substitute, effects that unfold over a century — what would an agreement have to offer instead in order to be accepted by countries acting in their own interest?
A ban on trading a wildlife product raises its price wherever demand survives, and a higher price is a larger reward for whoever is willing to break the law. Under what conditions would closing a market protect a species, and under what conditions would a carefully regulated legal trade protect it better?
When a country’s terms of trade deteriorate, it must export more physical material to buy the same imports. If the extra ore, water and land consumed in doing so is a real cost, should it be counted against the exporting country’s national accounts, or against the consumption of the country that buys the goods?
A wealthy country offers to pay a poorer one to leave a forest standing. Is that compensation for a service supplied, or an intrusion into a decision that belongs to the country holding the forest? Does the answer change according to who inside that country receives the payment?
In the shrimp farming case, the problems a foreign laboratory could detect in the exported product were corrected within a few years, while the saline wells and cleared mangrove left behind depended entirely on domestic regulation. If a market disciplines only what its buyers can see, what does that imply about which environmental problems will be solved first anywhere in the world?
The stated aim of a good aid programme is to leave the recipient able to do without it. Is that also true of the payments made to countries for protecting forests, species and the atmosphere — or is that a transfer that should be expected to continue indefinitely, because what is being bought is a service rather than a stage of development?
8.19 Objective Questions
- Choose the correct option. The global commons are resources that
- are owned jointly by the world’s governments
- lie beyond the jurisdiction of any single country
- are protected by the World Trade Organisation
- belong to the country nearest to them [1 mark]
- Choose the correct option. A pollutant is most likely to be found far from where it was released if it is
- water-soluble and quickly broken down
- persistent and fat-soluble
- heavy and chemically reactive
- released in small quantities [1 mark]
- Choose the correct option. Most rainforest nutrients are held in
- the deep subsoil
- the living vegetation and litter
- the underlying rock
- rainwater as it percolates through the soil [1 mark]
- Choose the correct option. Under CITES, commercial international trade is prohibited for species listed in
- Appendix I
- Appendix II
- Appendix III
- none of the Appendices [1 mark]
- Choose the correct option. The band of solar ultraviolet radiation whose arrival at the surface depends most on the thickness of the ozone layer is
- UV-A
- UV-B
- UV-C
- all three equally [1 mark]
- Choose the correct option. In Chapman’s cycle, the two middle reactions together are described as a null cycle because they
- destroy ozone permanently
- produce no net change in the amount of ozone but absorb ultraviolet radiation
- create ozone faster than it is destroyed
- occur only over the poles [1 mark]
- Choose the correct option. The severe seasonal thinning of ozone over Antarctica requires all of the following except
- isolation of the air by the polar vortex
- temperatures low enough to form polar stratospheric clouds
- the return of spring sunlight
- high local emission of chlorofluorocarbons over Antarctica [1 mark]
- Choose the correct option. A country has a comparative advantage in a good when it can produce that good
- in the largest quantity
- at the lowest opportunity cost
- using the fewest workers
- for export only [1 mark]
- Choose the correct option. The difference between a tariff and a quota is that a tariff
- fixes the quantity imported, while a quota taxes each unit
- yields revenue to the government, while a quota’s extra payment goes to the licence holder
- raises prices, while a quota lowers them
- applies to exports only [1 mark]
- Choose the correct option. Under Most Favoured Nation treatment, a trade advantage granted by a WTO member to one country must be
- kept secret from other members
- extended equally to all other members
- approved by the World Bank
- limited to developing countries [1 mark]
- Choose the correct option. The Bamako Convention differs from the Basel Convention chiefly in that it
- regulates the waste trade through prior informed consent
- prohibits the import of hazardous waste into Africa outright
- applies worldwide
- permits exceptions for radioactive waste [1 mark]
- Choose the correct option. Tied aid is assistance that
- must be repaid at commercial interest rates
- must be spent on goods and services from the donor country or a specified list
- may be spent wherever the recipient chooses
- is given only in emergencies [1 mark]
- Assertion–Reason. Choose the correct option. Assertion (A): A chlorofluorocarbon molecule can reach the stratosphere and damage the ozone layer. Reason (R): Chlorofluorocarbons are chemically stable and insoluble in water, so nothing removes them from the lower atmosphere.
- Both A and R are true, and R is the correct explanation of A
- Both A and R are true, but R is not the correct explanation of A
- A is true but R is false
- A is false but R is true [1 mark]
- Assertion–Reason. Choose the correct option. Assertion (A): A newly cleared plot of rainforest gives good crop yields for the first two or three years. Reason (R): Rainforest soils are naturally rich in nutrients.
- Both A and R are true, and R is the correct explanation of A
- Both A and R are true, but R is not the correct explanation of A
- A is true but R is false
- A is false but R is true [1 mark]
- Assertion–Reason. Choose the correct option. Assertion (A): A ban on trade in a wildlife product can, where demand persists, increase the reward for poaching. Reason (R): Restricting supply while demand continues tends to raise the price.
- Both A and R are true, and R is the correct explanation of A
- Both A and R are true, but R is not the correct explanation of A
- A is true but R is false
- A is false but R is true [1 mark]
- Assertion–Reason. Choose the correct option. Assertion (A): A country’s terms of trade can deteriorate even when the prices of its exports are rising. Reason (R): The terms of trade depend on export prices relative to import prices, not on export prices alone.
- Both A and R are true, and R is the correct explanation of A
- Both A and R are true, but R is not the correct explanation of A
- A is true but R is false
- A is false but R is true [1 mark]
- Match each instrument or body in Column A with what it does in Column B.
| Column A | Column B |
|---|---|
| a. CITES | i. regulates international trade in endangered species |
| b. Montreal Protocol | ii. sets binding phase-out schedules for ozone depleting substances |
| c. Basel Convention | iii. controls the cross-border movement of hazardous waste by prior informed consent |
| d. World Trade Organisation | iv. administers the rules of international trade and settles trade disputes |
[1 mark]
- Match each ozone depleting substance in Column A with its principal use in Column B.
| Column A | Column B |
|---|---|
| a. Halons | i. fire extinguishing systems |
| b. Methyl bromide | ii. soil and grain fumigation |
| c. Chlorofluorocarbons | iii. refrigerants and aerosol propellants |
| d. Carbon tetrachloride | iv. solvent and chemical feedstock |
[1 mark]
- Match each intellectual property category in Column A with what it protects in Column B.
| Column A | Column B |
|---|---|
| a. Patent | i. a novel and inventive product or process |
| b. Trademark | ii. a sign identifying the source of goods |
| c. Geographical indication | iii. a place-of-origin name and its associated quality |
| d. Trade secret | iv. confidential commercially valuable information |
[1 mark]
Fill in the blank. The build-up of a substance in the tissues of an organism, occurring when intake exceeds breakdown and excretion, is called __________. [1 mark]
Fill in the blank. The volume of water used in producing a commodity, regarded as embodied in it when it is traded, is called __________ water. [1 mark]
State whether true or false: The ozone hole is a gap in the atmosphere over Antarctica through which ultraviolet radiation passes directly to the surface. [1 mark]
State whether true or false: Under National Treatment, a WTO member may tax imported goods more heavily than equivalent domestic goods once they have cleared customs. [1 mark]
Give the full form of each of the following abbreviations used in this chapter: (i) CITES; (ii) ODS; (iii) TRIPS; (iv) MFN; (v) REDD+. [1 mark]
Give the full form of each of the following abbreviations used in this chapter: (i) GATT; (ii) TNC; (iii) EPR; (iv) ODA; (v) DU. [1 mark]
8.20 Check Your Concepts
Define the global commons and give two examples. [2 marks]
State what an ozone depleting substance is, and name any three that the syllabus lists. [2 marks]
Define the terms of trade of a country and state what a fall in the index means for it. [2 marks]
Give the full form of TRIPS and state one environmental or developmental concern that it raises. [2 marks]
State what is meant by tied aid, and give one reason a donor country might prefer to give it. [2 marks]
Differentiate between transboundary pollution and a global environmental problem, giving one example of each. [3 marks]
Differentiate between free trade and protectionism with respect to their core principle and their main environmental concern. [3 marks]
Distinguish between stratospheric ozone and tropospheric ozone in terms of where each occurs and its effect on people. [3 marks]
Give reasons why a rainforest regrows so slowly and so incompletely after it has been cleared. [3 marks]
Explain the free rider problem, and state why it makes a global environmental agreement harder to negotiate than a local pollution rule. [3 marks]
Explain, with an example, how tariff escalation can keep the processing of a raw material in the importing country rather than the exporting one. [4 marks]
Explain why a subsidiary company may cause serious environmental harm in one country while its parent company abroad is difficult to hold responsible. [4 marks]
Draw and label a diagram of Chapman’s cycle, and explain what the “null cycle” within it achieves. [4 marks]
Explain why the Montreal Protocol is regarded as a successful global environmental agreement, and state two conditions that helped it succeed which may not be present for other environmental problems. [4 marks]
Describe the case of Amazonia as a transnational environmental issue: the ecological value of the forest, the main drivers of its clearing, and the measures that reduced deforestation in the Brazilian Amazon, together with one honest limitation of those measures. [6 marks]
The international ban on the ivory trade is defended by some and criticised by others. Set out the case for prohibition and the case for regulated sustainable use, and state why the dispute is between two conservation positions rather than between conservation and its opponents. [6 marks]
Discuss the export imperative and its impact on the environment, using Indian examples of mineral extraction, a water-intensive crop, and coastal aquaculture. [6 marks]
8.21 Passage-Based Questions
- Read the passage and answer the questions that follow.
A landlocked district produces a single mineral ore, which is dug from a large surface pit and railed to a port for export. Over ten years, the price of the ore on the world market rose and fell sharply several times, and the district’s income rose and fell with it. Wells in villages beside the mine have begun to run dry, and a stream below the pit has turned reddish and acidic. The ore leaves the district as it comes out of the ground; the machinery, fuel and manufactured goods the district buys are made elsewhere. a. Name the type of mining described, and identify two of its environmental effects mentioned in the passage. [2 marks] b. Explain why the district’s income rose and fell so sharply, using the idea of primary commodity price behaviour. [2 marks] c. The passage says the ore leaves “as it comes out of the ground”. Explain what the district gives up by exporting the raw ore rather than a processed product. [2 marks] [6 marks]
- Read the passage and answer the questions that follow.
A firm based in one country builds a factory in another, where wages are lower and environmental rules are less strictly enforced. The factory is registered as a separate company under the laws of the host country. It produces goods for export back to the firm’s home market. After some years, discharge from the factory is found to have contaminated a nearby watercourse. Residents seek compensation, but find it difficult to bring a claim against the parent firm abroad. a. Identify the type of enterprise described, and state two reasons a firm establishes production in another country. [2 marks] b. Explain why the separate legal status of the host-country factory makes it difficult to hold the parent company responsible. [2 marks] c. Suggest one measure that could make cross-border accountability for such harm more effective. [2 marks] [6 marks]
- Read the passage and answer the questions that follow.
Along a stretch of coast, farmers converted paddy fields and part of a belt of coastal trees into ponds to raise a species of prawn for export, because the export price was far higher than the price of rice. Within a few years, wells in the nearby village turned brackish, some fields would no longer grow rice, and a disease spread through the ponds, forcing many to be abandoned. The earnings had gone mainly to those who owned the ponds; the brackish wells affected everyone. a. Name the coastal trees likely to have been cleared, and state one protective function they perform. [2 marks] b. Explain why the village wells turned brackish. [2 marks] c. This case is used to illustrate the impact of free trade. Explain how the distant export market shaped a land-use decision on this coast. [2 marks] [6 marks]
- Read the passage and answer the questions that follow.
A wealthy country wishes to reduce global deforestation. It offers a forest-rich developing country a payment for every unit of reduction in its rate of forest clearing, measured against the country’s average clearing rate over the previous ten years. The developing country points out that a neighbour which cleared its forests rapidly in the past would, under this rule, be paid more than a country that had protected its forests all along. a. Name the type of international mechanism described. [1 mark] b. Explain the principle of sovereignty over natural resources, and why the wealthy country cannot simply order the forest to be protected. [3 marks] c. Explain the objection the developing country raises about the baseline, and state one other criticism of such payment schemes. [2 marks] [6 marks]
8.22 Practice With Data
- The table gives the atmospheric lifetime and approximate ozone depletion potential (ODP, relative to CFC-11 = 1) of four substances.
| Substance | Approximate lifetime (years) | Approximate ODP |
|---|---|---|
| Methyl chloroform | 5 | 0.1 |
| CFC-11 | 52 | 1.0 |
| CFC-12 | 100 | 1.0 |
| Methyl bromide | under 1 | 0.6 |
- Which substance will persist in the atmosphere longest, and roughly how many times longer than methyl chloroform? [2 marks]
- Using the table, explain why controlling methyl chloroform produced results within a few years while the effect of controlling CFC-12 will take far longer to appear. [2 marks] [4 marks]
- Total column ozone over a site is measured on four days.
| Day | Total column ozone (DU) |
|---|---|
| 1 | 300 |
| 2 | 260 |
| 3 | 210 |
| 4 | 190 |
- On which days would the column be described as being within the ozone hole, given the conventional threshold, and state that threshold value in DU. [2 marks]
- Calculate the percentage decrease in total column ozone from Day 1 to Day 4. [2 marks]
- Using the relationship between column ozone and surface ultraviolet-B, state approximately how the fall from Day 1 to Day 4 would affect UV-B reaching the surface. [2 marks] [6 marks]
- A country’s price indices, with a base year value of 100, are given below.
| Year | Export price index | Import price index |
|---|---|---|
| Base year | 100 | 100 |
| Later year | 130 | 156 |
- Calculate the country’s terms of trade in the later year. [2 marks]
- State whether the terms of trade have improved or deteriorated, and by what percentage relative to the base year. [2 marks]
- If the country exports a mineral ore, explain what this change means for the physical quantity it must extract and export to buy the same imports as before. [2 marks] [6 marks]
- Two workers, one in Country X and one in Country Y, can each produce the following in a year.
| Country | Cloth (units per worker) | Grain (tonnes per worker) |
|---|---|---|
| Country X | 30 | 60 |
| Country Y | 10 | 30 |
- Calculate the opportunity cost of one unit of cloth, in tonnes of grain, in each country. [2 marks]
- State which country has the comparative advantage in cloth, and which in grain. [2 marks]
- Country X can produce more of both goods per worker. Explain briefly why it can still gain by trading with Country Y. [2 marks] [6 marks]
- The figure described shows estimated numbers of a large mammal against time: a value near 1,300,000 in the late 1970s, a fall to about 600,000 by the late 1980s, a vertical line marked “international commercial trade in the product banned” at 1989, a period of stabilisation through the 1990s, and a renewed decline from about 2008.
- Calculate the approximate percentage fall in the estimated population between the late 1970s and the late 1980s. [2 marks]
- The population stabilised after 1989 but declined again from about 2008. Suggest one reason, drawn from this chapter, for the renewed decline. [2 marks]
- The figure notes that the numbers are estimates that vary between surveys. Explain why exact population counts for such an animal are difficult to obtain. [2 marks] [6 marks]