Environmental Performance Index
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New Environmental Performance Index Highlights Sustainability Gains and the Challenges Ahead
The 2026 EPI, produced by Yale and Columbia Climate School, finds that Europe leads in environmental performance but few countries are on track for net-zero by 2050.
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New Report Provides a Ranking of Sustainability Around the World
The 2024 Environmental Performance Index, produced by centers at Columbia Climate School and Yale, offers a scorecard for 180 countries based on their climate change mitigation, ecosystem vitality and environmental health.
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How We Can Make Ports More Sustainable — And Why it Matters
An index created by a Sustainability Science student quantifies the major environmental impacts of shipping hubs.
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How Well is the World Protecting Ecosystems and Human Health?
The new global environmental report card is out. The 2016 Environmental Performance Index graded 180 countries on how well they are protecting human health and their ecosystems. While the world is making progress in some areas, it is seriously falling behind in others.
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Data’s Power to Spur Environmental Progress
In January, 132 countries received their environmental report cards. The Environmental Performance Index has goaded leaders into action by letting them see their countries’ strengths and weaknesses compared to other countries.
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Global Environment Index Downgrades U.S. and China
Richer Countries Tend to Do Better—But Not Always
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Global Environmental Scorecard Gives U.S. Low Rank
Jan. 23, Davos, Switzerland – A new international ranking of environmental performance puts Switzerland at the top—and the United States 39th, last among the Group of 8 industrialized countries. The ranking, the 2008 Environmental Performance Index, was produced by a team from Yale University and the Columbia University Earth Institute’s Center for International Earth Science…
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
