climate science21
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Year by Year, Line by Line, We Build an Image of Getz Ice Shelf
Changes in Antarctic ice have been dominated by the interaction of the ice and the ocean, and because ice shelves extend out into the water they are vulnerable to melt from the warmer ocean water. Melt can affect them in two ways, through thinning along their length and through causing a retreat of the “grounding…
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Ancient Leaves Link Loss of Antarctic Ice to a CO2 Spike
Twenty-three million years ago, the Antarctic Ice Sheet began to shrink, going from an expanse larger than today’s to one about half its modern size. Ancient fossilized leaves retrieved from a lake bed in New Zealand now show for the first time that carbon dioxide levels increased dramatically over a relatively short period of time…
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Red Flags Over the Arctic’s Future
A new white paper reviews climate impacts already underway in the Arctic, and examines further changes expected to take place even if the world meets the goals of the Paris Agreement. It will be presented today at a meeting at the White House of national-level science ministers and advisors from around the world.
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Extreme-Weather Winters Becoming More Common in U.S., Study Shows
This past July was Earth’s hottest month since record keeping began, but warming isn’t the only danger climate change holds in store. Recent years have seen a dramatic increase in the simultaneous occurrence of extremely cold winter days in the Eastern United States and extremely warm winter days in the Western U.S., according to a…
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As Louisiana Floods, Measuring the Climate Change Effect
The heavy rains and flooding in Louisiana have been devastating. Can we attribute the severity of it to climate change? How you measure that depends on the questions you ask.
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Symposium this Week on Climate and Adaptation
This week climate scientists from the United States and Europe will join with officials from government and international agencies at Columbia to share knowledge about climate change and strategies for adaptation in North America and the Caribbean.
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Climate and Cod
A new study finds that the climatological phenomenon known as the North Atlantic Oscillation contributes to fluctuations in the cod population off the New England coast, and could help fishery managers protect the population from future collapse.
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A Summer of Hands-on, Minds-On Science
Twelve students from New York and New Jersey are spending July in laboratories at Lamont-Doherty Earth Observatory, working with the scientists. The internship program enables students to spend four weeks exploring what it means to be an earth scientist.
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Linking Climate Forecasts, Soil Testing for Smarter Farming
A new project combines cutting edge climate science and mobile soil labs for African farmers and service providers.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
