Lamont-Doherty Earth Observatory129
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Polar Ice, Penguin Tracks and Phytoplankton
Jeff Bowman, a postdoctoral research scientist at the Lamont-Doherty Earth Observatory, is in Antarctica for the field season studying how phytoplankton and bacteria interact. Follow his reports from Palmer Station.
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In 2015: Hot, Wet and Opinionated
This year is shaping up to be the warmest year on record since 1880, according to new data from the National Oceanic and Atmospheric Administration. And, perhaps not so coincidentally, a new poll says more people in the United States are coming around to the view that climate change is happening.
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Last Sample and Home
We finished our work at the river transect. Now we had one more sample to collect. Alamgir had arranged for drillers at this new site, but they were delayed because of a knife fight between two villages over some property.
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OSL Samples at Last
The success of the tube wells for drilling and obtaining samples was a great boon to our field program. We drilled three additional tube wells to complete a five-well transect across the abandoned river valley. When we date the samples, we will find out if the river switched position suddenly, possibly from an earthquake.
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Exploring Rugged Hills & Turbulent Waters 4,500 Meters Down
Aboard a ship at the Mid-Atlantic Ridge, scientists are studying how the deepest and coldest waters mix with shallower waters, gaining heat in the process.
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El Niño: Resources for Journalists
El Niño is earth’s most powerful climate cycle, influencing weather and affecting crops, water supplies and public health globally. What may be the strongest El Niño ever measured is now getting underway, and is already affecting parts of the world.
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Tubewells to the Rescue
The resistivity testing was hampered by bad roads and flooded fields. The augering was proving similarly difficult in the thick muds of the abandoned channel. It was time to change to our alternative plan: drilling with tube wells. That worked better and we had turned a corner.
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Climate Change Leaves Its Mark on the Sea Floor? Maybe Not
A new study in Science questions the provocative idea that climate change may shape the texture of the sea floor. A Snickers bar helps explain what’s really going on.
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Come Aboard: A Look at the R/V Marcus Langseth
A new video produced by Columbia University tells the story of what the research vessel Marcus G. Langseth is all about.

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
