Department of Earth and Environmental Sciences
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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.
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Women in Science: Climate and Wildfire Researcher Caroline Juang
In honor of International Day of Women and Girls in Science, we profile Caroline Juang, who studies how climate change is impacting wildfires out west.
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Climate School Appoints Five New Faculty Members
New faculty members from a variety of disciplines will add to the breadth of Climate School education programs.
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The Hidden Language of Ocean Coral
Logan Brenner, a scientist at Columbia’s Lamont-Doherty Earth Observatory, is part of an international collaboration to drill into the ocean’s past.
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Meet Steve Goldstein, Interim Director of the Lamont-Doherty Earth Observatory
Steve Goldstein, interim director of the Lamont-Doherty Earth Observatory, talks about his long history with Columbia, and why the geosciences have such an important role to play in the climate crisis.
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Montreal Protocol Is Delaying First Ice-Free Arctic Summer
New research from Columbia climate scientists shows that the 1987 ozone treaty, designed to protect the ozone layer, has postponed the occurrence of the first ice-free Arctic by as much as 15 years.
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What Is Blue Carbon and How Can It Help Fight Climate Change?
Researchers at Columbia Climate School discuss the benefits and challenges of working with carbon from ocean and coastal ecosystems.
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Announcing a New Undergraduate Major: Climate System Science
Launched in partnership with the Columbia Climate School, the new major is aimed at students who want to understand the past, present, and future climate system, and learn strategies for solving the climate crisis.
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
