U.S. Southwest
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‘Hot Drought’ Unprecedented Across Western North America Since the 16th Century, Study Suggests
Increased heat due to human-induced climate change, not just lack of rain, is driving the continued drying of soils, say researchers.
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Study Reveals Long-Distance Levers Behind U.S. Southwest Drought—and a Dry Future
The U.S. Southwest has suffered a historic drought over the past two decades. A new study elucidates the drivers, and says conditions will never return to those of the relatively wet 20th century.
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Warming Pushes Western U.S. Toward Driest Period in 1,000 Years
Study Warns of Unprecedented Risk of Drought in 21st Century
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Smaller Colorado River Projected for Coming Decades, Study Says
Some 40 million people depend on the Colorado River Basin for water but warmer weather from rising greenhouse gas levels and a growing population may signal water shortages ahead.
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
