Lamont-Doherty Earth Observatory
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Indonesia May Soon Lose Its Last Glaciers
Scientists estimate that Indonesia will lose its two remaining glaciers by 2030—a warning for glaciers around the world.
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A New Study Explains How Carbon Dioxide Cools the Upper Atmosphere—and Warms Earth Below
Researchers have solved a long-standing atmospheric puzzle: how rising carbon dioxide cools the stratosphere even as it warms Earth’s surface and lower atmosphere.
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“Near-miss” Tsunami in Alaskan Cruise Area Offers Lessons for Steep Landscapes Near Glaciers
As glaciers retreat in warming regions, the risk of related hazards can increase, and improved monitoring may help reduce some of those dangers, according to a new study.
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You Asked: Lamont and Climate School Experts Tackle Reader Questions on Science and Sustainability
We invite readers to share their most pressing questions about climate, science and sustainability.
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Lamont Paleoclimatologist Maureen Raymo Receives the 2026 Nemmers Prize
Raymo received the award for her pioneering development of hypotheses that explain climate change across Earth’s history, and her educational leadership in the Earth system sciences.
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Geologist Mike Kaplan Named 2026 Guggenheim Fellow
Kaplan studies the ways ice sheets, mountain glaciers, climates and landscapes changed in the past.
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Faculty Spotlight: Decoding the Arctic Ocean’s Chemical Clues
Laramie Jensen’s interest in inorganic and analytical chemistry led her to the ocean. And then to the North Pole.
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Exploring Connections Between Environment and Society
Aynsley Kretschmar, a soon-to-be graduate of the M.A. in Climate and Society program, reflects on the skills she’s gained from her time at Columbia, as well as what she’s most excited about for her future.
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Indigenous Herders and Peru’s Melting Glaciers: A Conversation with Anthropologist Allison Caine
Caine’s new book depicts a small community in the glacier-fed Peruvian Highlands as it navigates climate change and social pressures.
Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026
