202224
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Pivoting on Greenhouse Gas Regulation
Action will now need to focus on state and local governments along with powerful corporations and institutions to continue forward motion in the transition to environmental sustainability.
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Dinosaurs Took Over Amid Ice, Not Warmth, Says a New Study of Ancient Mass Extinction
There is new evidence that ancient high latitudes, to which early dinosaurs were largely relegated, regularly froze over, and that the creatures adapted—an apparent key to their later dominance.
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Study Sees Potential Ways to Mitigate India’s Risk of Groundwater Depletion
Government-subsidized electricity has played a big role in pumping out groundwater for irrigation at an unsustainable rate. Changing the system could help, say researchers.
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Cultivating Seaweed for Carbon Removal in California: Barriers and Recommendations
Seaweed farms could capture and store carbon emissions. A new paper suggests leasing and permitting changes that could help the industry thrive in California.
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Tropical Cyclones Are Dropping in Number, Study Says
Using historical records and model data, researchers have for the first time shown that the annual number of tropical cyclones dropped during the 20th century compared with the late 19th century.
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Seeing Through the Sea
How researchers are plumbing the seafloor during a quest to understand ‘silent’ earthquakes off the Mexican coast.
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Reality and the Court’s Political Reality
The political agenda-setting process and the ensuing political reality cannot be divorced from economic, social, and cultural forces. The Supreme Court will find its legitimacy reduced if it does not accommodate that reality.
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Integrating Climate Change, Decarbonization, and Just Transition Considerations Into Extractive Industry Contracts
Suggestions from experts at the Columbia Center on Sustainable Investment.
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Manishka De Mel: Helping People and Ecosystems Adapt to Climate Change
At the Center for Climate Systems Research, she translates information about climate risks to support resilience-building in developing countries.

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
