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…

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In Washington, beware any proposal that attempts to “level the playing field.” What is usually meant is hobbling competition with restrictive rules and regulations that often raise costs for consumers. On the international playing field, such “leveling” can have broader disastrous consequences.

That’s likely to be the case with the House Ways and Means’ misguided proposals to impose carbon taxes on imports from countries that haven’t taken stringent measures to control greenhouse gas emissions.

It turns out that the huge and complex energy bill…

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