How Carbon Trading Became a Tool of Global Climate Governance
- Leith EL Euch
- May 13
- 6 min read
Introduction
The quota market, also called the carbon market, is one of the most important tools in the fight against climate change. The idea is quite simple: governments set limits on pollution and give or sell companies a certain number of allowances. If a company pollutes less than allowed, it can sell the allowances it did not use. If it pollutes more, it must buy extra permits. Because of this, companies have a financial reason to reduce their emissions.
This system is interesting because it is not only about the environment. It is also linked to economics, law, and international relations. It can affect industry, energy policy, and relations between states. The European Union has played a very important role in the development of carbon trading through the EU Emissions Trading System. Other countries are also creating similar systems, which makes carbon pricing more common around the world.
What is the Quota Market?
The quota market is based on the idea of “cap and trade.” This means that a public authority sets a maximum level of emissions for certain sectors. This maximum level is called the cap. Over time, the cap becomes lower, so allowances become rarer and more expensive. Usually, one allowance gives the right to emit one ton of carbon dioxide or an equivalent greenhouse gas.
The idea is that companies which reduce pollution faster can sell their unused allowances. Companies that pollute more must buy extra permits. This gives firms flexibility because they can choose how to adapt. They are not forced to use one exact method. Instead, they can choose the cheapest solution for themselves.
Many people support the cap-and-trade system because it uses the market to achieve an environmental goal. It can encourage innovation and reward companies that modernize more quickly. However, the market does not work on its own. It needs clear rules, control, and political support. If too many Tallowances are given for free, the carbon price becomes too low. Then companies are not really pushed to change. This happened in the early years of the EU system and showed that this kind of market still depends heavily on political decisions.
The European Union as the Main Example
The best-known quota market is the European Union Emissions Trading System, also called the EU ETS. It started in 2005 and was the first major international carbon market. Today, it is still one of the most influential systems. It covers sectors such as electricity, heat production, industry, aviation, and maritime transport.
The EU case is very important because it shows that carbon markets can produce results if the system is strict enough. Emissions from the sectors covered by the EU ETS have declined significantly since 2005, which shows that the system can work in some sectors. It is also part of the European Union’s broader climate strategy. In recent years, the EU has made reforms to strengthen the system and make it more ambitious.
This broader climate strategy is not only technical but also political. The European Union wants to show that it is a leader in climate governance. By strengthening its carbon market, it wants not only to reduce pollution in Europe, but also to influence international standards. The expansion of carbon pricing and the new ETS2 for buildings and road transport show that the EU sees the quota market as part of a larger political strategy.
Why the Quota Market Matters in International Relations
The quota market is important for international relations because climate policy is no longer only domestic. Carbon pricing affects trade, competition, and diplomacy. If one country or region has strict carbon rules while another does not, some companies may move production to places where regulation is weaker. This is called carbon leakage.
Because of that, the quota market raises questions about fairness between states. Governments do not only want to fight climate change. They also want to protect their industries and avoid losing economic power. As a result, climate policy becomes connected to strategy, power, and competition between countries.
A good example is the EU’s Carbon Border Adjustment Mechanism, or CBAM. This policy puts a carbon price on certain imports. For the EU, it helps protect its climate policy and reduce carbon leakage. But for some other countries, it can look unfair or protectionist. This shows that climate governance is also linked to tensions in the global economy and world politics.
The quota market also matters because more and more countries are adopting similar systems. Carbon trading is therefore no longer only a European idea. It is spreading more widely, which makes it part of global governance today.
The Strengths of the System
The quota market has several advantages. First, it puts a price on pollution. This is important because if pollution has no cost, companies have less reason to reduce their emissions. When carbon becomes more expensive, investment choices can change. This can make coal less attractive and cleaner energy more competitive.
Another advantage of the quota market is that it can raise revenue for governments. The goal is to use this money for renewable energy, innovation, or support for people affected by the transition. In this way, the quota market is not only about punishing pollution. It can also help finance climate policy and new projects.
The system can also be changed over time. It can be made stricter, larger, or connected with other systems. This flexibility is useful because technologies and political priorities change over time. For these reasons, many governments see the quota market as practical. It is not perfect, but it offers an economic way to address climate problems
The Limits and Criticisms
Even if the system has advantages, it also has many criticisms. One big problem is social inequality. If carbon pricing makes energy or transport more expensive, poorer households may suffer more than others. Because of this, carbon policies can create anger and political opposition in society.
Another problem is price volatility. Carbon prices can fluctuate a lot. This can make planning difficult for companies. If prices are too low, firms have no strong incentive to invest in cleaner technology. If prices are too high, political resistance can grow. So governments often need to intervene in the market, which shows that it is not a completely free market.
There is also the risk of expecting too much from carbon markets. They can help, but they cannot solve climate change alone. Some sectors are hard to decarbonize and need more direct rules or public investment. A carbon market works better when it is part of a larger strategy, not when it is used alone.
Finally, there is an issue of inequality between countries. Richer countries usually have more means to build and manage these systems. Poor countries may find it more difficult. So if quota markets expand without support, they may reinforce global inequalities rather than reduce them.
Conclusion
The quota market has become an important tool in modern climate governance. It is useful because it combines environmental goals with economic incentives. The European Union has shown that, under certain conditions, carbon trading can help reduce emissions and shape climate policy more broadly.
However, the quota market should not be seen as a perfect solution. It depends on political choices, strong regulation, and public acceptance. If the rules are weak, it will not work well. If people think it is unfair, it can become politically fragile and less effective.
In international relations, the quota market is important because it is about more than just the environment. It is also about trade, power, and competition. For this reason, the future of carbon markets will also tell us something about global governance.
Bibliography
European Commission (no date). About the EU ETS. Available at: https://climate.ec.europa.eu/eu-action/carbon-markets/about-eu-ets_en
European Commission (no date) EU Emissions Trading System (EU ETS). Available at: https://climate.ec.europa.eu/eu-action/carbon-markets/eu-emissions-trading-system-eu-ets/development-eu-ets-2005-2020_en
European Parliamentary Research Service (2026). Revision of the EU emissions trading system. Brussels: European Parliament. Available at: https://www.europarl.europa.eu/thinktank/en/document/EPRS_BRI%282026%29782615
ICAP (2025) Emissions Trading Worldwide: ICAP Status Report 2025. Berlin: International Carbon Action Partnership. Available at: https://icapcarbonaction.com/en/publications/emissions-trading-worldwide-icap-status-report-2025
World Bank (2025) State and Trends of Carbon Pricing 2025. Washington, DC: World Bank. Available at: https://www.worldbank.org/en/publication/state-and-trends-of-carbon-pricing
European Commission (no date) The EU’s Emissions Trading System (ETS) explained (The video). Available at: https://climate.ec.europa.eu/eu-action/carbon-markets/about-eu-ets_en
Boursorama (2021) Que se passe-t-il sur le marché européen du carbone ? (Video). Available at: https://www.youtube.com/watch?v=3VUR7FHtF74&t=222s
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