Pliocene
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Reconstructing 6.5 Million Years of Western Mediterranean Sea Levels
Researchers have reconstructed past sea levels in the western Mediterranean in new detail by sampling coastal cave formations.
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Team Deciphers Sea-Level Rise From Last Time Earth’s CO2 Was as High as Today
In a coastal cave off Spain, scientists have found evidence showing that more than 3 million years ago, when temperatures were similar to those projected for the end of this century, sea levels were as much as 16 meters higher than they are now.
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Crossing 400ppm: Welcome to the Pliocene
“Right now, we’re living in a world of a Pliocene atmosphere,” scientist Maureen Raymo of the Lamont-Doherty Earth Observatory tells the Yale Forum on Climate Change and the Media. “But the whole rest of the climate system — the oceans are trying to catch-up, the ice sheets are waning, and everything is trying to catch…
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400 ppm World, Part 1: Large Changes Still to Come
Why should society care that CO2 is now as high as 400 ppm? The reasons are multiple, but all trace back to the relationship between CO2 and temperature.
On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!
