Lamont-Doherty Earth Observatory
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Join Us on May 30 to Celebrate Hudson River World Fish Migration Day
Hosted by scientists and educators at multiple locations along the lower Hudson River Estuary, this event celebrates the vital role played by estuaries in the life cycle of many ocean fish species.
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Ancient Dust Points To Retreat of West Antarctic Ice Sheet During Last Warm Period
Antarctica’s Ross Ice Shelf and the West Antarctic Ice Sheet may have been far smaller during one of Earth’s most recent warm periods, according to a new study.
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The Paradox of AI and Climate
AI is a two-sided coin, with tremendous potential to benefit the environment while also requiring an immense amount of water and energy. How will these two opposing dynamics balance out—or can they?
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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.
You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
