Earth Sciences80
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The Art and Science of Climate Change
This fall, the photographs of Sebastião Salgado provide the springboard for an ambitious program of panel discussions, lectures and film screenings addressing the urgent issue of climate change, at the International Center of Photography in New York City.
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Photo Essay: Sculpting Tropical Peaks
Max Cunningham, a graduate student at Lamont-Doherty, traveled to Costa Rica’s Mount Chirripó this past summer to test the idea that mountain glaciers carved the summit we see today. He and his colleagues hope to eventually pin down when Chirripó’s high-elevation valleys eroded into their current form. Check out a recap of their 2014 field…
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At the Corner of Mudd Hall, the Secret of Blue Quartz
How did big crystals of blue quartz get locked into the pink granite of Mudd Hall? David Walker of the Lamont-Doherty Earth Observatory continues his Columbia Geology Tour.
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Aureococcus
On skin, it’s barely a freckle I’d make, But baby, en masse, we turn seas opaque! Come darkness, come famine, come poison or flood, My kind can flourish in any old crud.
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Building Blocks from the Mississippian Sea
The Columbia Geology Tour, Part 2: Take a trip back 350 million years to the shallow seas of the Mississippian that covered what is now the U.S. Midwest — source of the finely crafted limestone columns and facade details of St. Paul’s Chapel.
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Photo Essay: Open House at Lamont-Doherty
Bend a rock. Channel your historic ‘birthquake.’ Check out rocks, fossils, sediment cores and more at Lamont’s Open House on Saturday, October 11.
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What Everyone Should Know About Climate Change
Climate scientist William D’Andrea of the Lamont-Doherty Earth Observatory asked young scientists attending a symposium last October, “What do you wish everyone knew about climate change?” He turned the responses into this video, which covers the topic pretty well.
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Is the Highest Climb Sustainable, and Who Pays the Price?
The Khumbu Icefall on Mount Everest is perhaps the most well-known and notoriously dangerous glacial feature on the planet. In a fresh post on the Glacier Hub blog, the Earth Institute’s Ben Orlove, writing with anthropologist Pasang Yangjee Sherpa of Penn State, recounts a recent workshop held in Kathmandu to address the issues raised by…
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The Columbia Geology Tour: Stories in the Stones
For the last decade or so, Columbia University geologist David Walker has led students and colleagues on a tour of the geologic gems hiding within Columbia’s campus. Along the way, Walker finds evidence of how life on Earth has evolved over 4.5 billion years.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
