Department of Ecology Evolution and Environmental Biology4
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Fall 2017 Earth Institute Internship Opportunities
The Earth Institute is offering undergraduate, graduate and PhD students with opportunities to intern in various departments and research centers in a variety of administration, communications and research roles. Interns work on a variety of sustainability-focused projects across The Earth Institute. These projects provide interns with hands-on workplace experience, allowing them to grow professionally while…
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Ruth DeFries, Jeffrey Sachs Named University Professors
Ruth DeFries and Jeffrey Sachs have been named University Professors, the highest rank Columbia University bestows on its faculty.
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Hatchets, Ratchets & Pivots: Book Talk by Ruth DeFries
As Professor Ruth DeFries aptly stated in her opening remarks at yesterday’s book launch for “The Big Ratchet,” if you look at satellite pictures of the earth, you see the imprint of the human species everywhere. Humans have come to dominate the planet. But how did this come to be? This question, among others, is…
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New Program in Tropical Biology and Sustainability
The Tropical Biology and Sustainability Program will allow students the opportunity to study ecology, evolutionary biology, conservation biology, environmental engineering, and sustainable development in the environmental hub of East Africa.

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
