Lisa Sachs
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The Paradox of AI and Climate
AI is a two-sided coin, with tremendous potential to benefit the environment while also requiring an immense amount of water and energy. How will these two opposing dynamics balance out—or can they?
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Congratulations to the 2026 Graduates of the Columbia Climate School
On May 15, M.A. in Climate and Society and M.S. in Climate Finance students gathered to celebrate their accomplishments.
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Climate Finance Has Failed Africa Twice Over. Here’s How To Fix It.
Credit-rating methodologies must stop treating poverty as a self-fulfilling proxy for default risk.
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Columbia Climate School Experts on What Gives Them Hope in 2026
2025 was a tough year for climate action. Yet our experts see signs of progress on the horizon, and climate solutions within reach.
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Science for the Planet: Financing Sustainable Development
Meet Lisa Sachs—a lawyer who specializes in how public and private investment can help achieve environmental, social and economic goals.
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Climate Finance Student Chimi Dorji Hopes to Represent the Global South on the World Stage
A recipient of the Stanley Park Climate Finance Scholarship, Chimi Dorji has spent the last seven years working on climate action, environmental conservation and community development in Bhutan.
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Canada Pledges $15 Million for Climate Adaptation in Hindu Kush Himalayan Region
In partnership with a local NGO, Canada will finance climate adaptation projects throughout Nepal, Bhutan and Bangladesh.
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Rethinking Energy Systems in the Age of AI
To view data centers as mainly energy-intensive off-takers misses their potential as digital and energy infrastructure multipliers.
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Powering the Future: Innovative Renewable Energy Projects Around the World
Take a virtual tour of some remarkable renewable energy projects from around the globe, each showcasing innovative technology, ambitious scale, and a commitment to a cleaner, more sustainable future.
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!
