Trump delayed a global carbon tax. Now he wants to finish the fight.
American officials are drafting a diplomatic cable that warns dozens of countries against adopting a climate fee on the shipping industry.
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American officials are drafting a diplomatic cable that warns dozens of countries against adopting a climate fee on the shipping industry.
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In January 2026, the UK government publicly released an intelligence report analyzing the security implications of global environmental destruction.
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President Trump has aggressively used tariffs as an economic tool, but a US Supreme Court decision on Friday struck down his sweeping tariffs, bringing new uncertainty. The court,...
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Lenfest-Earth Institute Professor of Natural Resource Economics , Vice Dean for Academic Affairs, School of International and Public Affairs
Scott Barrett is a leading scholar on transnational and global challenges, ranging from climate change to disease eradication. His research focuses on how institutions like norms, customary law, resolutions, and treaties can be used to promote international cooperation.
He has advised a number of international organizations, including the United Nations, the World Bank, the OECD, the European Commission, and the International Task Force on Global Public Goods. He was previously a lead author of the Intergovernmental Panel on Climate Change and a member of the Academic Panel to the Department of Environment in the UK.
Barrett previously taught at the Johns Hopkins University School of Advanced International Studies in Washington, DC, where he also directed the International Policy program. Before that, he was on the faculty of the London Business School. He has also been a visiting scholar at Yale. Barrett is a research fellow with the Beijer Institute (Stockholm), CESifo (Munich), and the Kiel Institute of World Economics.
He received his Ph.D. in economics from the London School of Economics; an M.A. in economics from the University of British Columbia, Vancouver; and a B.S., summa cum laude, in resource economics from the University of Massachusetts, Amherst.
Following the historic Paris Agreement last weekend, the Columbia SIPA Center on Global Energy Policy collected commentary on the agreement from several of our scholars and Faculty Affiliates across Columbia University
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