Climate156
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Environmental Science and Speaking Truth to Power
Denying the science of global warming is absurd, but accepting the science of climate change does not require decision-makers to accept the policy prescriptions of climate scientists.
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Looking at Climate from All the Angles
The Earth Institute digs into the past, tracks the present and models the future of climate. We explore the broader issues surrounding climate change, seek ways to apply our knowledge to real solutions, and nurture collaboration among faculty and researchers in the natural sciences, social sciences and humanities, law, public health, engineering, architecture and urban…
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Earth Institute 2017 Calendar Now Available
To celebrate our 20th anniversary, we asked members of the Earth Institute community to submit photographs for a 2017 wall calendar highlighting our work. Watch a slide show of some of the submissions. Donate $25 or more and we’ll send you the calendar.
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State of the Arctic: Longer Melting Seasons, Thinning Sea Ice
The Arctic is warming twice as fast as the rest of the planet, and scientists are seeing the effects across ice and ecosystems. Lamont-Doherty Earth Observatory’s Marco Tedesco describes the changes underway.
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Forecasting for the In-Between
We can do a good job forecasting the weather for a week or two, and we can settle on what the climate is likely to do season to season, a month to a year into the future. But what about in-between?
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Spy Satellites Reveal the Himalayas’ Changing Glaciers – in 3D
Declassified spy satellite images are beginning to provide the first consistent look at how glaciers across the Himalayas are changing and what future water supplies might look like for millions of people.
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Sustainable Development Fall 2016 Workshop Briefings
By Chandler Precht On December 9, 2016, students in the Undergraduate Program in Sustainable Development presented practical solutions to sustainability issues and challenges faced by real world clients. Under the guidance of Professor Stuart Gaffin and Professor Radley Horton, the Capstone Workshop offers students a chance to convey the knowledge and theories gained throughout their time in the…
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The Undermining of Climate Science
The election of Donald Trump has climate scientists concerned about its implications for U.S. environmental policies and worldwide efforts to curb the effects of climate change. Many fear that climate science under Trump could be strategically undermined in a variety of ways.
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Most of Greenland Ice Melted to Bedrock in Recent Geologic Past, Says Study
Finding Suggests the Ice Sheet Is More Vulnerable Than Thought

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
