Department of Earth and Environmental Sciences
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Lamont Paleoclimatologist Maureen Raymo Receives the 2026 Nemmers Prize
Raymo received the award for her pioneering development of hypotheses that explain climate change across Earth’s history, and her educational leadership in the Earth system sciences.
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Faculty Spotlight: Decoding the Arctic Ocean’s Chemical Clues
Laramie Jensen’s interest in inorganic and analytical chemistry led her to the ocean. And then to the North Pole.
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Sinking Land Drives Hidden Flood Risk in One of the World’s Most Populated Regions
A new study finds that land subsidence is outpacing ocean-driven sea-level rise along the northern coastline of Java Island, Indonesia.
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Earth’s “Missing” Billion Years: Study Links the Great Unconformity to Early Tectonics
New findings shed light on a widespread gap in the geologic record, where more than a billion years of Earth’s history appear to have been erased.
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Women in Science: Paleoceanographer Apollonia Arellano
Arellano uses geochemical analyses to reconstruct deep ocean circulation in the North Atlantic Ocean.
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Women in Science: Climate Impact Researcher Sanketa Kadam
In honor of International Day of Women and Girls in Science, we’re featuring Kadam, who researches compound extreme events in India and their impacts on crops and farmland.
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Mercury Rising: Why Emissions of This Deadly Neurotoxin May Soon Increase
The EPA is proposing changes to the Mercury and Air Toxic Standards (MATS), which would weaken mercury emissions limits from U.S. fossil fuel power plants by 70 percent.
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Columbia Will Co-Lead Major Project To Study Global Carbon Cycle
Awarded by Schmidt Sciences, a new grant will provide up to $45 million to four interdisciplinary teams of researchers who will seek to improve climate modeling across land, air and sea.

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026

