CIESIN
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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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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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Climate Mobility in Focus: Highlights From MR2025
Drawing academics, policymakers and practitioners from around the world, the conference addressed themes of climate mobility, adaptation and wellbeing.
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More and More People Missing From Official Census Data
Foreign aid cuts will worsen “quiet crisis,” according to experts.
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MR 2025: Building Mobility, Resilience and Connection in a Changing Climate
At MR2025, local and international scientists, policymakers, academics and community members will join representatives from different sectors to discuss climate mobility, adaptation and wellbeing.
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Climate School Experts on the Los Angeles Fires: Causes, Impacts and Recovery
As California battles devastating wildfires, our researchers are helping to make sense of how they became so destructive, and what’s needed for recovery.
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35 Years of Harnessing the Power of Geospatial Data for Decision Making
CIESIN’s mission is to make complex environmental, social and economic data easy to access and use so that people can make better decisions about pressing issues like climate change, disaster response and sustainable development.
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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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Columbia Beautiful Planet 2024
Each year, we honor Earth Day by sharing some amazing photos celebrating the beauty and magic of our planet from our campuses to the far corners of the world as captured by the Columbia community.
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!
