Columbia Center on Sustainable Investment
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Beyond Net-Zero Targets: Lisa Sachs on Designing Systems for Decarbonization
Sachs, director of Columbia’s Center on Sustainable Investment, argues that durable climate progress begins with systems diagnosis, not isolated technologies, targets or promises.
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Empowering the Next Generation of Climate Leaders in the Green Mountains
Columbia Climate School in the Green Mountains is a two-week campus-based program in Vermont for high school students to mobilize action, drive impact and effect change in response to our warming planet. The summer 2026 program welcomed 58 students from the United States, China, Hong Kong, Thailand, Singapore and the U.K.
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How Ethiopia Can Make COP32 the Summit That Actually Delivers
Lisa Sachs believes Ethiopia and the African Union can make the 2027 COP more effective by focusing on scalable plans for energy systems, finance reform, food security and nature restoration.
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The Case for Decarbonizing Singapore’s Data Center Boom Using Geothermal Resources
Data centers are straining Singapore’s limited clean energy supply, but a proposed Sumatra–Singapore grid interconnection could help solve the problem.
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AI’s Promise Requires Innovation in Governance, Not Technology Alone
New research highlights that without a coordinated global agreement, AI risks accelerating the very crises it could help solve.
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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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Climate Finance in the Multipolar Era
Climate finance in the multipolar era will be driven less by collective targets and more by the need to manage geopolitical security risks in a less stable world.
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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 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.
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
