Climate258
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R.I.P. La Niña
La Niña, we hardly knew ye. This year’s iteration of the climate phenomenon nearly set records for strength and riled up world weather for nine months. Now it’s dead. What’s next?
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Rising Seas Pushing Island Nations to the Brink
Rising sea levels caused by global warming could displace millions of people worldwide who are living on low-lying coastlines, and it may prove fatal to some small island nations. At a conference at Columbia Law School, legal experts explored the implications for the people whose homelands could become uninhabitable within a matter of decades.
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Squeezing the Last Drops out of Sicily
If you were to drive south from Palermo, Sicily toward Monreale, you would be ringed in by green mountains, the sparkling white of ancient and modern buildings and the azure Mediterranean Sea receding behind you. Continuing south through the island’s mountainous interior, you would pass verdant agricultural fields on your way past Corleone, the namesake…
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Switchyard Project: A Very Successful Year
The 2011 field season has been a very very successful year, in fact the most successful one we have ever had. The weather has been great, the equipment proved to be mostly reliable, the people have been great and the samples are plenty.
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Climate News Roundup: Week of 5/15
Climate Scientist Fears His “Wedges” Made It Seem Too Easy, National Geographic, May 17 In their 2004 paper, “Stabilization Wedges: Solving the Climate Problem for the Next 50 Years with Current Technologies,” Princeton physics and engineering professor, Robert Socolow, and his colleague, ecologist Stephen Pacala proposed a theory to check any increase in greenhouse gas…
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Switchyard Project: Melting Ice, a Fresher Arctic
The freshwater content of the Arctic Ocean is increasing as the Earth’s climate warms. Chemical analysis indicates that the source is both melting ice and the Pacific Ocean.
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The American Climate Gap
There’s a growing gap between scientists’ view of climate change and that of the general public, and it has less to do with scientific “illiteracy,” and more to do with the psychology of how people frame their understanding of the world, say the authors of a paper just published in the journal American Psychologist.
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Ohio and Mississippi River Floods in Photos
Heavy rains over the American South and Midwest have deluged the region, causing unprecedented flood damage. View photos of the event from around the web.
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Earth, Water and Sky –A Conversation with Pierre Gentine, a new Columbia Water Center Scientist
Columbia Water Center welcomes Pierre Gentine, Assistant Professor of Applied Mathematics at Columbia University’s School of Engineering and Applied Science, as an affiliate researcher. Pierre’s groundbreaking research on the way soil moisture interacts with the atmosphere has implications for many of CWCs initiatives—from developing more efficient irrigation systems, to water resource management, to understanding floods.…

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
