Lamont-Doherty Earth Observatory143
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A Quick Retreat from ‘Mountain Lion’ Savannah
On their fourth day on Mount Chirripo, Lamont’s Max Cunningham and Mike Kaplan explore an unusual valley and find the spot where a lion apparently killed someone.
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Landslide Up Close
On their third day on Mount Chirripo, Lamont geologists Max Cunningham and Mike Kaplan discover remnants of a mysterious landslide.
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Melting and Refreezing of Deep Greenland Ice Speeds Flow to Sea, Study Says
Findings May Shift Understanding of Ice Sheet Behavior
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Chiseling Away
Lamont-Doherty geologists Max Cunningham and Mike Kaplan chisel away at glacial moraines on Costa Rica’s Mount Chirripo to understand when ice withdrew during the last ice age.
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Climbing Mount Chirripó
On the hike up Costa Rica’s Mount Chirripó, Lamont geologists Max Cunningham and Mike Kaplan encounter varied climates and vegetation.
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Mount Chirripó: Shaped by Glaciers or Tectonic Forces?
Lamont-Doherty graduate student Max Cunningham describes his upcoming research objectives on Costa Rica’s Mount Chirripó.
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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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How High Will Sea Levels Rise?
Scientists from Lamont-Doherty Earth Observatory are trying to determine how high sea levels may rise in the future by studying the shorelines of the past. Led by a team of researchers including Lamont climate scientist and marine geologist Maureen Raymo, the goal of Pliomax is to increase the accuracy of global sea level estimates for…
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Clock Is Ticking in West Antarctic
“The high-resolution records that we’re getting and the high-resolution models we’re able to make now are sort of moving the questions a little bit closer into human, understandable time frames.”
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
