Lamont-Doherty Earth Observatory127
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Catch Up on the Latest in Earth Science with AGU Sessions Live Online
The American Geophysical Union’s Fall Meeting opens in San Francisco this week. Catch up on your interests through AGU’s On-Demand live stream.
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What Is Ocean Acidification & Why Does It Matter?
Excess carbon dioxide absorbed into the oceans is starting to have profound effects on marine life, from oysters to tiny snails at the base of the food chain. Our scientists explain the changes and what they are learning about ocean acidification in the past.
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MPA-ESP Alum Serves as Earth Institute Postdoctoral Fellow
For Justin Mankin, the MPA in Environmental Science and Policy program helped expose his passion for environmental science. Mankin is currently serving as an Earth Institute postdoctoral fellow and research scientist, where he is focusing on climate variability.
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Partnering Best Minds in Science & Business to Take on Climate Change
While national governments can set goals for combating climate change, many of the decisions that lead to action will come from business leaders. The new Columbia Center for Climate and Life helps them build from a foundation of science.
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Antarctica’s Ice: the Big Picture
The impacts of climate change are being felt around the world, but the changes in the polar regions have been more pronounced. The world began to take notice to these changes when an ice shelf roughly the size of Rhode Island collapsed into the ocean in 2002.
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Using LiDAR to Shine a Light on Ross Ice Shelf
LiDar (Light Detection and Ranging) is a remote sensing technique that uses light to develop an elevation image of the surface of the Earth. It is sensitive enough to image small items such as seals lying on the ice surface.
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Greenland Glaciers Retreating Faster than Any Time in Past 9,500 Years
A new study uses sediment cores to track the expansion and retreat of glaciers through time, and finds that they are retreating quickly and are more sensitive to temperature change than previously realized.
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American Geophysical Union 2015: Key Earth Institute Events
Scientists at Columbia University’s Earth Institute will present important findings at the American Geophysical Union fall 2015 meeting, Dec. 14-18–the world’s largest gathering of earth and space scientists.
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The Compact Efficiency of New Airborne Science
The latest team celebration is around the magnetometer data. Magnetics has evolved quite a bit over the years of geophysical sampling. Lamont scientist Robin Bell recalls when in the 1990s working on a project in West Antarctica that the magnetometer was towed on a winch ~100 meters behind the aircraft – now it is nearly…

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
