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Watch the event here

Every year, the atmospheric concentration of CO2 increases, and the world experiences more of the effects of climate change. International approaches to lowering emissions have not worked, and more than two decades after the Kyoto Protocol, the world still does not have a binding international agreement on climate change. We need a new approach. The Biden Administration has put climate change at the center of its priorities, and public support for action has never been higher. What are the options? What might actually work?

William Nordhaus

The winner of the American Academy of Political and Social Science (AAPSS) Daniel Patrick Moynihan Prize, William Nordhaus, became committed to the study of climate and to developing macroeconomic approaches that dealt with environmental change in the 1970s.  Professor Nordhaus is the inventor of economic models that determine efficient paths for coping with a warming planet, and his scientific contributions culminated in a Nobel Prize in Economics in 2018. He has long emphasized the importance of cooperative international approaches to the control of carbon emissions, and has recently advocated for so-called climate clubs as a policy approach that can change international incentives in environmental policy.

On May 13, 2021, from 3:00 to 4:30 p.m. EDT, the AAPSS hosted an online seminar, co-sponsored by SAGE Publishing, that  focused on international economic and policy approaches to environmental regulation: “A Turning Point for International Climate Policy? New Approaches to Environmental and Economic Cooperation.” Professor Nordhaus was joined by a panel of experts to discuss carbon pricing approaches, climate clubs, and contemporary international climate policy.

Moderator: Robert Keohane, Professor of International Affairs, Princeton University

Presenter and Panelist: William Nordhaus, Sterling Professor of Economics and Professor of Forestry and Environmental Studies, Yale University


  • David Victor, Professor, Center for Global Transformation Endowed Chair in Innovation and Public Policy, University of California, San Diego
  • Kathryn Harrison, Professor of Political Science, The University of British Columbia
  • Rachel Kyte, Dean of The Fletcher School, Tufts University

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