Ice Age
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Humans Occupied a High-Altitude Site in Australia During the Last Ice Age, New Study Finds
Archaeologists and local First Nations groups have uncovered early evidence that reshapes our historical understanding of high-altitude human occupation and mobility.
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Ocean Circulation Implicated in Past Abrupt Climate Changes
Circulation Slowed with Every Cooling During Last Ice Age
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What Geology Has to Say About Global Warming
The most important lessons drawn from geology are that the earth’s climate can change radically, and rapidly. We can’t say precisely at what CO2 level we’re in danger of melting Antarctica, but that threshold could be reached in 150-300 years, if CO2 levels keep rising at the current rate.
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George Kukla, Contrarian Climate Scientist
George Kukla, a climate scientist who was among the first to warn of the power of global climate change and inspire government study, died on May 31 at his home in Suffern, N.Y. The cause was an apparent heart attack; he was 84. In a career spanning more than five decades, much of it spent…
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The Breathing Ocean
Far south and farther south, where winds are cold and screaming, Waters churn, and deep below, old sediments lie dreaming. A million years’ residuum of life and death and dust, A library of ice ages reposed upon Earth’s crust.
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Shag, Before It Was Cool
More cuddly than a dino, The Zanda woolly rhino! This pioneer of old Grew shag before the cold. …
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Study Adds New Clue to How Last Ice Age Ended
New Zealand Glaciers Melted as European Glaciers Briefly Expanded
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Answer to What Ended Last Ice Age May Be Blowing in the Wind
A Chain of Past Natural Events May Hold Lessons for the Future
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Wind Shifts May Stir CO2 From Antarctic Depths
Releases May Have Speeded End of Last Ice Age—And Could Act Again
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
