201847
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Improving Tropical Cyclone Risk Assessment
Chia-Ying Lee, a scientist at the International Research Institute for Climate and Society, studies the structure and intensity evolution of tropical cyclones and how these are influenced by climate change.
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In Continuation of Trend, 2017 Was Second Warmest Year on Record
Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880, according to an analysis by NASA released today.
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NYC is Selling Off Its Fossil Fuel Investments—Here’s Why That Matters
The City of New York joins a chorus of public and private entities refusing to support companies that contribute to climate change.
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Want to Be a Sustainability Expert? Don’t Quit Your Day Job!
A new degree program at Columbia offers technical training in sustainability science for working professionals as well as recent grads.
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The Hard Work of Making Sustainability Management Real
To have meaningful change on sustainability, corporations, nonprofits and governments must bring it into the regular fabric of organizational life.
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Reflections from Antarctica: A Landscape in Flux
Working as an Antarctic field scientist, I witnessed the destruction provoked by a rapidly warming planet. But I also found inspiration.
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What is Biodiversity and How Does Climate Change Affect It?
In general, the more species that live in an area, the healthier that ecosystem is—and the better off we humans are.
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What Do Cold Snaps Have to Do With Climate Change?
Climate scientist Deepti Singh tells the cold truth about the extreme winter weather of the past few weeks.
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NYC is Suing Five Major Oil Companies Over Climate Change
Columbia University expert weighs in on the potential impacts of the lawsuit.

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
