The favored federal policy to address climate change is a domestic cap-and-trade system. However, a vocal minority of political leaders have begun arguing in favor of a carbon tax. Carbon taxes seem particularly attractive both for fiscal reasons and because they provide certainty over the price...

Gasoline and diesel fuel are heavily taxed in many developed and some emerging and developing countries. Outside of the United States and Europe, however, there has been little attempt to quantify the external costs of vehicle use, so policymakers lack guidance on whether prevailing tax rates...

The efficiency effects of carbon pricing depend on how it impacts distortions in fossil fuel markets, most notably from local air pollution externalities. By offsetting these distortions, carbon pricing may generate significant net economic benefits, so it is in countries own interests to...