Permian-Triassic extinction
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Study Bolsters Volcanic Theory of Ancient Extinction
A team of scientists has found new evidence to bolster the idea that the Permian Extinction, which occurred 252 million years ago, was caused by massive volcanic eruptions in what is now Siberia.
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Some Do Not Like It Hot
The Great Dying, The Big One — The Permo-Triassic! (In a time machine, not sure if that’s where I’d aim …) As extinctions go, this one’s a blockbuster classic, When most of Earth’s species dropped out of the game.
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Lords of the Past
With life, legged and finned, Earth had been teeming, Slitherers, predators, graceful trees tall … Now, of these species, we are only dreaming: Glossopteris, trilobites, eurypterids, all.
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
