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Researchers Say an 1800s Global Famine Could Happen Again
The Global Famine was one of the worst humanitarian disasters in history, killing as many people as World War II. A new analysis suggests it could happen again, only worse because of climate change.
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When Is a Sea Wall a Good Idea?
Scientists at Columbia’s Earth Institute are using simulations to test how well different methods protect coastal areas from hurricanes and sea level rise.
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Rooting Out the Errors in Climate Models To Better Predict Hurricanes
By enhancing climate models, a project will help to improve forecasts of intense hurricanes like Hurricane Florence.
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Using Artificial Intelligence To Locate Risky Dams
In the U.S., some 2,000 high hazard dams are in need of repairs. A project from the Columbia Water Center is helping to identify the most hazardous ones.
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Where Will Future Migrants Come From?
A project that anticipates how people will move in response to environmental changes could help to bolster social and humanitarian support for countries in crisis.
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Analysis: Congressman Curbelo’s Carbon Tax Could Dramatically Lower Greenhouse Gas Emissions
Columbia’s Center on Global Energy Policy has analyzed how the proposal would affect the U.S. economy and emissions, as well as low-income households.
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If You Think This Summer’s Heat Waves Are Bad, Just Wait for the Future
Rising temperatures and humidity could make summers unbearable in the southeastern U.S. and beyond, according to a study published in December.
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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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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
