Lamont-Doherty Earth Observatory133
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Tracing the Arctic
The land surrounding the Arctic Ocean is like a set of cradling arms, holding the ocean and the sea ice in a circular grasp. Within that cradle is a unique mix of waters, including freshwater from melting glacial ice and large rivers, and a salty mix of relatively warm Atlantic water and the cooler Pacific…
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The Downs and Ups of Mountain Building
In the islands off Papua New Guinea, the rocks are giving rise to new ideas about the ways mountain chains form. A new scientific model shows how two seemingly opposite processes can take place in the same region.
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Teen Scientists Team Up with Lamont to Restore an Invaded Marsh
“My experience at Lamont has been great and it’s something like no other. Here I was basically being trained to be like a scientist with exposure to lab work, fieldwork and presentation skills.”
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Dennis E. Hayes, Mapper of the World’s Ocean Beds
Dennis E. Hayes, a marine geophysicist who advanced mapping of the world’s ocean floors, died at his home in New York City on Aug. 6. He was 76.
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The Disaster Profiteers
In his new book “The Disaster Profiteers,” Earth Institute professor John Mutter argues that natural disasters are bad for the poor–and can be great for the rich, who often seize resources meant for recovery, when no one is looking.
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Head for the Hills
While we spent much of our time examining corals and swamps, studying sea level and storms, we became fascinated by a simple question: How did the hills of Exuma form?
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Hospitalizations Increase Near Fracking Sites, Study Shows
People living in areas of Pennsylvania where hydraulic fracturing is booming are suffering increasing rates of hospitalization, a new study says. The study is one of a small but growing number suggesting that the practice could be affecting human health.
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Battling ‘the Largest Mass Poisoning in History’
As many as one in five deaths in Bangladesh may be tied to naturally occurring arsenic in the drinking water; it is the epicenter of a worldwide problem that is affecting tens of millions of people. For two decades, health specialists and earth scientists from Columbia University have been trying to understand the problem, and…
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An Algorithm to Investigate Unwelcome Plankton
Computer scientists at Columbia University will work with oceanographers to understand what has caused an unusual plankton-like species to rapidly invade the Arabian Sea food chain, threatening fisheries that sustain more than 100 million people.
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
