Water Scarcity3
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To Ease Mexico City’s Water Woes, Look up, Study Suggests
For Mexico City’s biggest businesses and its poorest neighborhoods, rainwater harvesting could help address an enormous water crisis plaguing the city, a recent Columbia Water Center study found.
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Michelle Ho: In a Land of Plenty, Big Water Problems
Michelle Ho grew up in Australia, the driest inhabited continent, with an appreciation for the value of having a clean glass of water to drink. Now, she conducts research for the Columbia Water Center on America’s water systems.
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Work on Dead Sea Geology Earns Yael Kiro an Award
Yael Kiro, an associate research scientist at Lamont-Doherty Earth Observatory, has received the 2017 Professor Rafi Freund Award from the Israel Geological Society for work published on the ancient climate history of the Dead Sea.
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Under the Dead Sea, Warnings of Dire Drought
Ancient Sediments Tell a Story That Could Be Repeated
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Californians Are Ready for Recycled Water
Water reuse is a proven technology that can produce a drought-proof sustainable water supply. Yet historically, there has been some reluctance to adopt it here in the United States. Xylem commissioned a poll to try to better understand perceptions about recycled water in drought-stricken California. And the findings were eye-opening.
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The Changing Climate of Security
In the November Democratic presidential primary debate, Sen. Bernie Sanders said that the greatest threat to national security was climate change. But is there actually a link between national security and climate change, and if so, what is it?
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Declining Snowpacks May Cut Many Nations’ Water
With Warming, Possible Seasonal Deficits from California to Caucasus
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The Growing Groundwater Crisis
Groundwater is being depleted at alarming rates, not only in drought-stricken California, but around the world. When groundwater is depleted, it can take tens to hundreds of years to for it to reestablish its sustainable level, if at all. What can be done to avert a water crisis?
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U.S. Drought Risk Wider than Previously Thought
New research from the Columbia Water Center suggests that many more places in the United States are at risk of drought-induced water stress than is commonly thought, including dense metropolitan regions such as New York City and Washington, D.C.
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
