General162
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Video: Is Drought In East Africa The New Normal?
A video interview with climate scientist Bradfield Lyon, who explains his latest research on what’s driving rainfall patterns in parts of East Africa.
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Exploring the Bering Sea Ecosystem
Our stations have continued to be rich in phytoplankton, while our colleagues are excited by the larval fish they are finding in the southern Bering Sea. Wildlife sightings have included whales, dolphin, and the jawless lamprey fish, and we are settling in for potentially bumpy seas ahead.
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Switchyard 2012: Climate Change in the Arctic
Arctic summer sea ice is declining rapidly: a trend with enormous implications for global weather and climate. Now in its eighth year, the multi-year Arctic Switchyard project is tracking the Arctic seascape to distinguish the effects of natural climate variability from human-induced climate change. The University of Washington is leading the project. A) The Canadian…
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Seminar on the History of Science and Sustainable Development
The focus of sustainable development is international and collaborative, as much focused on innovations in research as on education and practice. There is an effort from sustainably-minded organizations, such as the Earth Institute, to bring together multidisciplinary experts to research, educate and solve problems.
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The Double-Edged Sword of Geoengineering
Shooting sulfur particles into the stratosphere to reflect the sun? Dumping iron into the ocean to boost the absorption of carbon dioxide? Could these far-fetched and dangerous-sounding schemes—geoengineering—help avert potentially catastrophic effects of climate change, or would they exacerbate conditions on our ever warming planet?
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Diatoms and Dessert
The lovely spring weather in New York City as I prepared for this cruise was difficult to leave behind, and it will be nearly summer once we return. In the Bering Sea, it still feels like winter. For the past two days we have sampled water out on deck with snowflakes falling from the sky.
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World Climate Policies: Substantial Progress But Enormous Challenges Remain
Recent analysis by Deutsche Bank Climate Change Advisory (DBCCA) in conjunction with the Columbia Climate Center, shows that the existing world climate policies have the potential to substantially reduce CO2 emissions, but are not aggressive enough to meet the suggested 450 ppm stabilization pathways.
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Clues to Sea Level Rise Are Hidden In and Below Greenland’s Ice
Greenland is surrounded by a ring of high mountains that work like fingers encircling the ice to hold it in place. Ice sliding from between these “fingers” into the surrounding waters results in a major human impact – Sea Level Rise.
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Passing Through
The sun rose above the back decks this morning as we traveled towards Pavlof Bay for our station. As we made our way through the Aleutian Islands, the peaks of active volcanoes Mount Pavlof and Pavlof’s Sister became visible above the clouds. The Aleutians are part of the Pacific Ring of Fire, home to about…
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
