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Sidney Hemming, Paleoclimate Detective, Wins Guggenheim Fellowship
A Q&A with the geochemist, who plans to investigate a key climate interval millions of years ago.
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How Climate Change Is Affecting Sea Squirts In Antarctica
As melting glaciers alter ecosystems in and around Antarctica, scientists study how sea squirts react.
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Far-Drifting Antarctic Icebergs Are Trigger of Ice Ages, Scientists Say
Large numbers of icebergs that drifted unusually far from Antarctica before melting into ocean waters have been key to initiating ice ages of the past, says a new study.
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Subglacial Lakes in Antarctica Found to Be More Active Than Previously Thought
A new study finds that a system of lakes under Thwaites Glacier have undergone large drainage events, highlighting underestimates in the melting rate of the glacier.
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Nick Frearson Designs Devices for Earth’s Most Extreme Environments
An engineer at Lamont-Doherty, Frearson builds instruments that help scientists collect vital data in Antarctica, the deep sea, and at the top of volcanoes.
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Damage Uncovered on Antarctic Glaciers Reveals Worrying Signs for Sea Level Rise
A new study has revealed extensive new damage to two major Antarctic glaciers that creates the conditions needed for ice shelf collapse.
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Stability Check on Antarctica Reveals High Risk for Long-Term Sea Level Rise
The warmer it gets, the faster Antarctica will lose ice, and at some point the losses will become irreversible. That is what researchers say in a new cover story in the leading journal Nature, in which they calculate how much warming the Antarctic Ice Sheet can survive.
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Deep Channels Linking Antarctic Glacier’s Underside to Ocean Could Hasten Melting
Newly discovered seabed channels beneath the Thwaites Glacier may be pathways for warm ocean water to melt the ice’s undersides and contribute to sea level rise.
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Antarctic Ice Shelves Vulnerable to Sudden Meltwater-Driven Fracturing, Says Study
A new study says that many of the ice shelves ringing Antarctica could be vulnerable to quick destruction if rising temperatures drive melt water into the numerous fractures that currently penetrate their surfaces.
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
