When Climate Policy Becomes Trade Policy

For decades, trade policy was easy to recognise. A government raised a tariff, an exporter had to pay more, and the effect could be seen at the border.

That is changing.

New barriers increasingly take the form of environmental standards, emissions reporting requirements, product rules, certification systems and sustainability conditions. A company may still face a low tariff but find it more expensive to enter a foreign market because it has to prove how its product was made.

Climate policy is becoming part of this changing trade system. The main question is not whether environmental regulation is legitimate. It is how rules designed to reduce emissions change the conditions under which countries compete and trade with one another.

The European Union provides a clear example. Its regulatory system connects environmental and climate requirements to access to its market. Two examples are the Carbon Border Adjustment Mechanism (CBAM) and the EU Deforestation Regulation. Non-tariff measures now affect around 90% of global trade, while the EU has one of the most extensive regulatory systems among major economies.

For developing economies, the consequence is becoming harder to ignore: reducing emissions is no longer only a domestic industrial challenge. It is becoming a condition for competing in international markets.

The border is moving inside the product

A tariff is charged when a product crosses a border. A climate-related trade rule can reach much further back into the process used to make that product.

Exporters may have to calculate their emissions, explain how they measured them and demonstrate that their products meet the required standards. As a result, two manufacturers producing similar goods can face different competitive conditions if one uses cleaner energy while the other relies on production methods that release more carbon.

This is the basic idea behind CBAM. Exporters must account for the emissions contained in certain products. This brings the carbon released during production into the cost of trading across borders.

The European Commission explains that CBAM entered its definitive phase on 1 January 2026. Initially, it covers specified goods in six sectors: cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. It does not apply to every product entering the European market. Regulation (EU) 2023/956 provides the legal basis for the mechanism, including which products it covers and what obligations apply.

Its importance goes beyond any payment required under the mechanism. Once emissions become part of the conditions for entering a market, the way a product is made becomes part of the trade relationship. In effect, the border begins to reach backwards into the factory.

Why developing countries face a different adjustment problem

The cost of meeting an environmental standard can vary greatly between countries. A wealthy country may have more money, better technology and stronger institutions to help its industries adjust. A developing economy may face the same requirements while still trying to expand industrial production, create jobs and build infrastructure.

As a result, requirements that look identical on paper can impose very different costs. This does not mean developing countries should be exempt from environmental standards. It means their ability to meet those standards must be considered alongside the requirements themselves.

For an exporter whose production releases relatively high levels of carbon, meeting the requirements involves two tasks: measuring and reporting emissions, and changing the production process itself. The first requires reliable data and reporting systems. The second may require new technology, cleaner energy and substantial investment.

An exporter has three broad choices. It can absorb the additional costs, risk losing its competitive position, or invest in cleaner production in the hope of protecting access to the market over the longer term. Unlike a conventional tariff, which mainly changes a product’s price, a climate-related rule can change the economics of producing it.

Climate regulation therefore becomes a form of industrial policy through another route.

India is already seeing the transition

India’s experience shows how businesses can respond even before a new rule fully takes effect.

Indian exports to European markets have increased ahead of CBAM’s implementation. Engineering exports grew by 23.76% in November during the period covered by the trade reporting. Exports to Germany, Spain and Belgium also rose sharply during that period. These figures do not prove that CBAM alone caused the increase. They do, however, illustrate how trade can change in anticipation of new regulations.

Businesses may send shipments earlier than planned, revise contracts, absorb some additional costs, change suppliers or begin investing in compliance before the new requirements become binding. An immediate rise in exports, therefore, does not tell us what the long-term effect will be.

The more important question is what happens when exporters need to change their production and reporting systems. If carbon-intensive production remains cheaper in India but becomes more expensive to sell into a major foreign market, cleaner production gains additional commercial value. It can help Indian businesses maintain access to their customers.

But is this simply green protectionism?

Environmental standards can become a form of protectionism. Regulatory requirements are often more complicated than tariffs, and they can increase costs for foreign producers while being presented as necessary for environmental protection. This concern is particularly strong among developing countries that have contributed less to historical emissions but have fewer financial and technological resources to reduce emissions from their industries.

From this perspective, environmental rules created by advanced economies can become conditions that developing-country exporters must satisfy to retain access to wealthier markets.

The European Union offers a different justification for CBAM. In its implementation guidance, the European Commission connects the mechanism to carbon leakage. This happens when companies move production to countries with weaker environmental standards because producing there is cheaper. If European producers face stricter limits on carbon emissions while competing imports do not face similar costs, production could shift elsewhere. Emissions would move from one country to another rather than disappear.

Under this reasoning, the border measure is intended to prevent European climate policy from simply shifting emissions to other countries. The EU also argues that the measure is consistent with its environmental objectives and WTO rules.

These competing concerns cannot be resolved simply by calling CBAM either protectionist or environmentally necessary. One concern is that it places unequal costs on developing economies. The other is that efforts to reduce emissions may fail if production moves across borders instead. The challenge is to understand how these objectives affect each other and whether the costs and responsibilities are shared fairly.

The hidden shift from tariffs to rules

CBAM is part of a wider change in global trade. Average tariff rates among WTO members have fallen substantially since the creation of the WTO, while non-tariff measures have expanded. These measures include technical regulations, licensing requirements, product standards, environmental rules, health and safety requirements, packaging standards and testing procedures.

As a result, access to a market increasingly depends on whether a product meets the rules of the country buying it.

The EU is particularly important in this change. According to the WTO and World Bank figures cited in the trade analysis, non-tariff measures cover roughly 94% of imports entering the EU. Its regulatory system extends beyond climate policy to include chemical safety, product standards, packaging requirements and measures such as CBAM and the EU Deforestation Regulation.

This changes what trade agreements can achieve. A country may negotiate lower tariffs and still find that its exporters struggle to benefit from those lower rates in practice.

India’s experience illustrates the difference. The ASEAN–India agreement has been in place since 2010, yet Indian businesses have used preferential tariff rates in less than 50% of cases, with non-tariff barriers making the benefits of these lower tariffs harder to realise. Indian pharmaceutical exporters, for example, have faced registration and approval requirements in foreign markets. These requirements can reduce the practical value of tariff concessions.

Climate regulation is becoming part of this wider shift. Future trade negotiations will therefore concern not only the taxes a product pays at the border, but also whether the product meets the rules required to enter a market.

The uncomfortable benefit of green trade barriers

Regulations can also create pressure for industries to improve. If access to an important market increasingly depends on lower emissions, exporters have a stronger reason to reduce the carbon released during production. What begins as a compliance problem can become a reason to invest.

A manufacturer that expects carbon-intensive products to become harder to sell in major markets has a reason to invest in cleaner energy, more efficient technology and better systems for measuring emissions. The same environmental rule can create short-term costs while encouraging industries to modernise.

Its effects are therefore mixed: it creates trade difficulties for industries that are not ready to adjust, while encouraging industrial upgrading among those that can.

This is what makes climate-related trade policy different from an ordinary tariff. A tariff makes imported goods more expensive. A carbon-related regulation can also change which production methods remain commercially viable. Its effects go beyond the immediate cost of exporting and can influence where industries invest in the future.

The real problem is unequal capacity to adapt

If environmental regulation is becoming a condition for competing internationally, then access to technology, finance, emissions-measurement systems and cleaner energy becomes part of a country’s ability to trade.

Industries that can reduce emissions quickly may see new rules as an opportunity to upgrade. Those that cannot may experience them mainly as another cost of entering foreign markets. Over time, this could widen the gap between businesses that can prove their products are made with lower emissions and those that lack the resources to do so.

For India, the challenge is to prevent climate-related trade rules from creating a lasting technological disadvantage. At the same time, India needs to use the pressure created by these rules to speed up the modernisation of its industries. Access to trade and the reduction of emissions are becoming increasingly connected, but countries and businesses do not have equal capacity to respond.

Climate policy has crossed the border

Climate policy was once treated mainly as a domestic issue. Governments regulated factories, changed energy systems, set emissions standards and supported cleaner technologies within their own borders. Trade policy was treated separately.

That separation is becoming harder to maintain. When a product’s environmental characteristics affect the conditions under which it can enter another country’s market, domestic climate policy also has international economic consequences. A factory must respond not only to the rules set by its own government, but also to the environmental requirements of the markets it wants to serve.

The future of trade will increasingly depend not only on what countries charge at their borders, but also on what they require products to become before allowing them into their markets.

This does not mean every green regulation is protectionist. Nor does it mean every environmental standard is fair simply because it serves an environmental purpose. It means climate policy has become part of the conditions that shape global competitiveness.

And once that happens, the question of who gets to set environmental standards is no longer only a climate question. It is also a question of who gets to define the conditions of international trade.