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Policymakers should address climate change by developing a capacity to measure greenhouse gas emissions and to implement cost-effective ways of limiting emissions.

A fundamental issue is what steps, if any, nations should take to control greenhouse gas emissions. Robert W. Hahn argues that over the next decade the best strategy for policymakers is to build institutions that can address climate change in the future by developing a capacity at the nation-state level to measure greenhouse gas emissions and to implement and enforce cost-effective ways of limiting emissions. Policymakers must also improve the capacity of an international body to assess greenhouse gas inventories and review national policies.

Robert W. Hahn

Robert W. Hahn is the founder of the AEI Center for Regulatory and Market Studies (best known as the Reg-Markets Center), which succeeded the AEI-Brookings Joint Center in 2008. The Reg-Markets Center's primary focus is the understanding and improvement of regulation, market performance, and government policies. Previously, Mr. Hahn served as a senior staff economist on the President's Council of Economic Advisers, as the cochairman of the U.S. Alternative Fuels Council, and on the faculties of Harvard University and Carnegie Mellon University. He frequently contributes to leading scholarly journals and general interest periodicals, including the American Economic Review, the Yale Law Journal, Science, and the New York Times. His many books include Reviving Regulatory Reform: A Global Perspective (2001), High-Stakes Antitrust (2003), and Intellectual Property Rights in Frontier Industries (2005).