Paris Agreement2
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Developing Countries Fuel Momentum For Ambitious Climate Targets
A group of the least developed countries have held a climate summit to showcase their ambitious plans and hold developed nations to account.
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As of Today, the U.S. Is No Longer Part of the Paris Agreement
Whether or not we rejoin — and thereby do our part to prevent the worst impacts of climate change — depends on the outcome of the election.
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The Climate Talks Struggle While California Forges Ahead
The contrast between the climate talks in Poland and progress by California is illuminating and provides a clear indication of how the climate crisis will actually be addressed.
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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.
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How the U.S. Might Fulfill Its Paris Pledge Without the White House
States, cities, and businesses are trying to pick up the federal government’s slack to fight climate change. How big of a difference can they make?
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
