Lamont-Doherty Earth Observatory86
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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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You Asked: What Determines the Oxygen and CO2 Levels in Our Atmosphere?
An Earth Institute climate researcher breaks down why our atmosphere is the way it is, how it’s changed over time, and what the future may hold.
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You Asked: Why Do We Know More About the Moon Than Our Own Oceans?
An Earth Institute oceanographer answers this deep question from a reader as part of our Earth Month Q&A on Instagram.
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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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Field Work Ends … For Now
Despite some unpredictable Antarctic weather, the final G-055 team member makes it off the ice.
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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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Maureen Raymo on Lamont’s Living Library of Earth History
The paleoclimatologist and marine geologist talks about why the miles and miles of marine sediment samples in Lamont’s Core Repository are so important.
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Unlocking Earth’s Climate Past: A New Tracer Identifies Weathering Intensity Over Time
New method helps determine how quickly silicates wear down over time, which is key to understanding natural processes that remove CO2 from air.
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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.

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!
