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As Oceans Warm, Microbes Could Pump More CO2 Back Into Air, Study Warns
A new study suggests bacteria may respire more carbon dioxide from the shallow oceans to the air as seas warm, reducing the deep oceans’ ability to store carbon.
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MESSENGER Data Reveal That Mercury’s Inner Core Is Solid
The new findings offer clues about how the solar system formed and how rocky planets change over time.
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Switch From Hunting to Herding Recorded in Ancient Pee
In a new study, scientists use urine salts to reconstruct the timing and scale of the Neolithic revolution at a Turkish archaeological site.
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Warm Autumn Winds Could Strain Antarctica’s Larsen C Ice Shelf
New research shows that the Larsen C ice shelf—the fourth largest ice shelf in Antarctica—experienced an unusual spike in late summer and early autumn surface melting in the years 2015 to 2017.
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Carbon Lurking in Deep Ocean Threw Ancient Climate Switch, Say Researchers
A million years ago, a longtime pattern of alternating glaciations and warm periods dramatically changed, when ice ages suddenly became longer and more intense. Scientists have long suspected that this was connected to the slowdown of a key Atlantic Ocean current system that today once again is slowing. A new study of sediments from the…
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New Recommendations for a Climate-Smart National Flood Insurance Program
A new article co-authored by the Sabin Center for Climate Change Law provides key recommendations on how to change flood insurance for a changing climate.
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Deep-Sea Drillers Investigate Shedding of Antarctic Icebergs
Scientists are sailing to remote areas of the Southern Ocean to drill cores from the bottom that they hope will contain clues to past rapid changes in the Antarctic ice, and how it may react to warming climate today.
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Hurricane Maria Study Warns: Climate-Driven Storms May Raze Many Tropical Forests
Biodiversity could suffer as result, and more carbon could be added to the atmosphere.
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Changes in Ocean ‘Conveyor Belt’ Foretold Abrupt Climate Changes by Four Centuries
Led by Lamont-Doherty researchers, a new study is the first to measure the time lags between changing ocean currents and major climate shifts.
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
