201824
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Food Web: Trade Networks May Be Key to Solving Hunger
Columbia’s Center for Climate Systems Research is building a network analysis program that can pinpoint trouble spots in the global food trade system.
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Warming Climate Could Make Wildfire-Prone Homes Uninsurable
As insurers begin to account for climate change in their wildfire risk models, premiums in scorched areas could skyrocket.
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Study Signals Change in How Scientists Calculate Ancient Diets
Scientists have long determined what extinct animals ate by analyzing carbon isotopes locked inside their fossil teeth. But a new study shows that in many cases, they may be plugging the wrong numbers into their equations. The findings may change some views of how mammals, including us, evolved.
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Experimental Forecasts Could Help Guatemala Recover from Volcanic Eruption
Rainfall predictions out to three weeks suggest the nation may get some relief from downpours that are hindering response and rebuilding.
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Meet the Students Studying Transboundary Environmental Issues in the Middle East This Summer
For the fifth year, Columbia University and Tel Aviv University will collaborate to send grad students to the Middle East to learn about the environmental challenges facing communities in Jordan and Israel.
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James Hansen’s Climate Warning, 30 Years Later
Three decades after Hansen first warned Congress about global warming, the overwhelming scientific consensus is that he was right—and most would say that far too little has been done to address the threat.
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Rising Senior Shares Experience Taking on Sustainable Development and a Dual Degree
Elza Bouhassira spent two years in France as part of the Dual BA program. We asked her about the experience and her emerging outlook on sustainable development.
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What You Should Know About Air Quality Alerts
“It’s a code red day for ozone.” If you hear this on your local news, what does it mean? Are you at risk? Do you know what to do?
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A World Warmer By Just 2°C Will Be Very Different From Today
Past warm periods indicate that even the Paris Agreement’s limits on global warming could have catastrophic consequences over the long-term.
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
