Global Warming33
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El Niño and a Pathogen Killed Costa Rican Toad, Study Finds
Challenges Evidence That Global Warming Was the Cause
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Economist says climate change countermeasures make financial sense
In a New York Times article Feb. 20, Robert H. Frank, an economist at the Johnson Graduate School of Management at Cornell University, argues that acting to stop climate change makes economic sense.
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2000-2009: The Warmest Decade
Long-Term Rise in Global Temperature Unabated
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Oceans’ Uptake of Manmade Carbon May Be Slowing
First Year-by-Year Study, 1765-2008, Shows Proportion Declining
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How Does the Mind Grasp Climate Change?
A Research-Based Guide Tries to Narrow a Communication Gap
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Risks Cloud Financing for Curbing Climate Change
Policies Uncertain and May Not Stop Warming, Says Study
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Warming Climate May Devastate Major U.S. Crops
Study Suggests Tipping Points for Corn, Soybeans, Cotton
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CO2 Higher Today Than Last 2.1 Million Years
Study Offers Detailed Look at Past Greenhouse Gas Levels
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Dam Break in Northeast Brazil: Can We Blame Global Warming?
Nordeste, the driest region in Brazil, has been castigated by heavy rainfall in the last two months. Yesterday a dam broke in the state of Piaui killing at least four people. The video below shows a partial bridge that collapsed after the dam break. The media shows every day more and more news about natural…
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