Sustainability
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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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Beyond Borders: What It Takes to Build a Climate-Resilient Megalopolis
The Greater Bay Area in China is implementing nature-based solutions to build climate resilience amid rapid urbanization, biodiversity loss and worsening storms.
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Climate School Alumni Aim for Sustainability Goals in the 2026 World Cup and Beyond
As the 2026 FIFA World Cup plays out in North America, M.A. in Climate and Society graduates are working behind the scenes to drive sustainability efforts in sporting events.
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What I’ve Learned From ‘The End of Poverty,’ 20 Years Later
The author reflects on Jeffrey Sachs, the U.N., and the need to redesign global institutions for a world shaped by climate change, poverty and geopolitical strain.
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Regenerative Travel: Students Field Test What’s Next in Climate-Conscious Tourism
The Wild Tomorrow capstone workshop and Cuttyhunk Practicum are two examples of Climate School initiatives that focus on climate-conscious travel.
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Columbia Beautiful Planet 2026
Once again, we honor Earth Day by sharing some amazing photos celebrating the beauty and magic of our planet, as captured by the Columbia community.
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Science for the Planet: Turning Waste Into Critical Materials
Greeshma Gadikota and her team explore how materials that might otherwise be landfilled can be transformed into products needed for solar energy and other critical technologies.
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Climate School Experts on Congestion Pricing’s First Year
Three Climate School experts weigh in on the success of New York City’s congestion pricing program.
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Where Conservation Meets Community: Lessons From South Africa
Columbia Climate School students tackled real-world conservation challenges in one of the planet’s most biodiverse regions.
You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
