climate policy9
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Tracking the Undoing of Climate-Change Measures
The Sabin Center for Climate Change Law is launching a new tool to identify and explain the efforts taken by the incoming administration to scale back or wholly eliminate federal climate change mitigation and adaptation measures.
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What You Can Do to Keep Us Moving Forward on Climate
Many people are concerned that the Republican-controlled Congress and Trump’s administration will stop or reverse the progress the Obama administration has made on climate change. Here’s what you can do about it.
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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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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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Watch: Cities and the Climate Change Challenge
Join us for a symposium on Lessons of Climate Resilience in New York City this Wednesday, Oct. 19, from 6-7:15 p.m. in Low Library on the Columbia University campus.
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Don’t Be Bewitched by Paris Climate Change Deal
“We can and should develop other agreements that ask countries to coordinate their actions rather than to reduce their emissions voluntarily. Countries are good at coordination, and not so good at volunteering to act in their collective interests.”
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Melting Glaciers Help Spur a Message on Climate
On Oct. 5, several small mountain countries with glaciers—Austria, Bolivia, and Nepal—undertook an important step in advancing global action on climate change. They helped the Paris Climate Agreement reach the threshold to enter into force and become legally binding.
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Red Flags Over the Arctic’s Future
A new white paper reviews climate impacts already underway in the Arctic, and examines further changes expected to take place even if the world meets the goals of the Paris Agreement. It will be presented today at a meeting at the White House of national-level science ministers and advisors from around the world.
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An Admiral Assesses Climate Change
Columbia University’s Initiative on Extreme Weather and Climate hosted its biggest seminar to date. David Titley presented a talk entitled Climate Risk and National Security: People not Polar Bears. Titley, a retired U.S. rear admiral and now a professor of meteorology at Pennsylvania State University, brought humor to a serious topic and how it affects…
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
