Climate154
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Will China Take the Green Mantle From the U.S.?
While President Trump has promised to pull the U.S. out of the Paris climate accord, China’s President Xi Jinxing has vowed to continue to tackle climate change and honor his country’s obligations. Will China become the global leader in combating climate change?
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Trump’s Unifying Opportunity: Food Security
A sound strategy to secure the nation’s food supply and reduce its vulnerability within and beyond our borders will be a major step towards making America and the world more resilient in the face of increasing uncertainty.
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Save EPA
Until now, Administrator Pruitt has been an enemy of EPA, but he has a chance to change the narrative and demonstrate that his conservative principles are consistent with the goals of environmental protection. I hope he decides to save EPA and serve the American people.
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In High Sierras, Remnants of Ice Age Tell a Tale of Future Climate
Aaron Putnam’s research in the California Sierras is part of an effort to study glaciers around the world—in Europe’s Alps, the Himalayas, Mongolia, Patagonia, New Zealand. He’s working on an important piece of the worldwide climate puzzle that can help us understand what’s ahead in a warming world.
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Renewable Energy With or Without Climate Change
While renewable energy will go a long way to addressing the climate change issue, its development does not require a concern for climate change. The argument for renewable energy is that it is the logical next phase of technological development.
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Indonesian Corals Shed Light on Climate System
A new coral salinity record shows that the location of the most significant hydroclimatic feature in the Southern Hemisphere, the South Pacific Convergence Zone, influences a major Pacific Ocean current.
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Shifting Monsoon Altered Early Cultures in China, Study Says
The annual summer monsoon that drops rain onto East Asia has shifted dramatically, at times moving northward by as much as 400 km and doubling rainfall in that northern reach. The monsoon’s changes over the past 10,000 years likely altered the course of early human cultures in China, say the authors of a new study.
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Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface
Up to now, it has been a mystery why much of the fresh water resulting from the melting of Antarctic ice shelves ends up in the depths instead of floating above saltier, denser ocean waters. Scientists working along one major ice shelf believe they have found the answer.
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Ideology and Environmental Protection
With the phrase “climate change” disappearing from U.S. federal government websites and increased talk of regulatory overreach, it is obvious that protecting the environment will continue to be a fault line in American political ideology. However, though ideology will shape the nature and speed of response, the environmental problem is real and cannot be ignored.

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
