carbon border taxes

Today, the World Trade Organization, together with the UN Environment Programme posted a report on trade and climate change that outlines how carbon border taxes may be consistent with WTO rules. It is a very careful discussion of relevant articles, their intent and interpretation, and related WTO cases (though no case has specifically dealt with climate change).

In some cases, the WTO-UNEP discussion reads like “on the one hand, and on the other.” The report is bound to provide environmental groups with ammunition to argue that CO2 border taxes are WTO-compliant. However, the issues and their legal precedents are not that clear-cut. What’s more likely is that the introduction of border taxes or similar measures will open up a flood of retaliatory actions and disputes.

Here’s a summary from the report of the relevant GATT and WTO rules:

If a particular measure is inconsistent with one of the core provisions of the GATT (e.g. Articles I, III or XI), it could still be justified under Article XX. Article XX lays out a number of specific instances in which WTO members may be exempted from GATT rules. Two exceptions are of particular relevance to the protection of the environment: paragraphs (b) and (g) of Article XX. According to these two paragraphs, WTO members may adopt policy measures that are inconsistent with GATT disciplines, but necessary to protect human, animal or plant life or health (paragraph (b)), or relating to the conservation of exhaustible natural resources (paragraph (g)).

The report was issued just as the U.S. House of Representatives was to begin consideration of the Waxman-Markey energy bill, which, according to Inside Trade (subscription required), will include a Ways and Means Manager’s Amendment with provisions for carbon border adjustments to address competitive and so-called leakage issues.

In the wake of the release of the Waxman-Markey energy bill, many commenters have pointed to the drastic restrictions on domestic energy use to address greenhouse gas emissions, while some, like CEI, have pointed to the huge economic costs that would result — costs that would be paid for by consumers and in terms of reduced manufacturing and jobs.  Few have noted a further economic consequence — the possible disruption of the world trading system because of the bill’s endorsement of carbon border taxes on imports from countries that don’t have an energy-repressive regime.  Here’s what CEI’s Iain Murray has to say about that:

The bill as drafted clears the way for carbon protectionism.  It envisages “rebates” to companies that have to pay higher costs than their international competitors, which amounts to illegal state aid under WTO rules.  Further, it directs the President to institute what is laughably called a ‘border adjustment’ program requiring foreign companies to pay for the cost of carbon.  This is nothing more than a tariff aimed at eliminating the competitive advantage of other nations.  Taken together, these provisions represent the first shot in what is likely to prove a disastrous carbon trade war.

Margo Thorning of the American Council for Capital Formation and Bill Kovacs of the U.S. Chamber of Commerce provide hard and realistic criticism of carbon border taxes in National Journal’s Experts Blogs this week.