paleoclimate
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What Really Happened on Easter Island? Ancient Sediments Rewrite the “Ecocide” Story
A new study challenges long-held narratives of societal “collapse,” instead showing that Rapanui communities adapted to profound climate stress with resilience and innovation.
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Melting Glaciers Reveal Clues to Climate Adaptation in Norway’s Mountains
Glacial archaeologists are uncovering hundreds of artifacts in Norway, including the best preserved pair of prehistoric skis found to date.
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A New 66 Million-Year History of Carbon Dioxide Offers Little Comfort for Today
Scientists have produced a new curve of how atmospheric carbon dioxide affects climate. It makes clear that its effects can be long lasting.
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Science and Heritage: The Ice Memory Foundation’s Mission for the Planet
As climate change threatens an uncertain future, an international foundation is collecting and saving stories from the past in an unusual format: ice cores from disappearing glaciers that act as archives for both data and memories.
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Cataloging the Past for Clues to Future Climate Adaptation
A Q&A with archaeologist and anthropologist Kristina Douglass, who studies the evolving relationships between people and the environment.
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At 90, Still Studying Ancient Pollen
Lamont’s Linda Heusser turned 90 years old on April 12, and the only birthday present she really wanted was another sediment core to study.
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Tackling a 40 Million-Year-Old Conundrum
A new study bolsters the idea that the uplifts of the Himalayas and Andes that began tens of millions years ago helped trigger the many ice ages that followed.
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During the Last Ice Age, the Tropics Were Colder Than We Thought. Bad News for Us.
Gases collected from ancient groundwater provide a compelling portrait of how much past temperatures have swung back and forth.
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Scientists Have Discovered an Ancient Lake Bed Deep Beneath the Greenland Ice
Using radar and other techniques, researchers have mapped out the sediments left by a lake that apparently existed before Greenland was glaciated. Next step: drilling through the ice to see what they contain.
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!
