Water Scarcity
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Ripple Effects: Water, Youth and Climate Action
The Columbia Climate School will host the Ripple Effects: Water in a Warming World pre-college virtual workshop in fall 2025.
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Exploring the Sundarbans and Back to Dhaka
Our group of 24 Americans and Bangladeshis continued to explore the Sundarbans mangrove forest, rice farming in embanked low-lying islands, and heritage sites of Bangladesh.
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Across the Ganges to Southwest Bangladesh and the Sundarbans
Our group of 23 American and Bangladeshi students and professors traveled from the Jamuna River to the Ganges and Gorai Rivers, and then down to an island on the edge of the Sundarbans, the world’s largest mangrove forest.
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Glacier Retreat in the Andes is Bankrupting a Billion Dollar Corporation
The developer of a controversial hydroelectric project in Chile has filed for bankruptcy, blaming Andean glacier retreat and droughts for low water flows.
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Space Station Instrument Provides Newly Detailed Look at Plants’ Drought Resistance
Plants in the same groups often show similar drought resistance independent of the climate in which they grow.
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Barisal and the Eastern Channel
We are continuing our measurements of fresh and saline groundwater in Bangladesh using electromagnetic instruments. We finished our first set of measurements and have now shifted farther east near Barisal where groundwater is fresher.
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Deploying in the Mangrove Forest
We continued our electromagnetic expedition to image fresh and saline groundwater into the Sundarbans Mangrove Forest, the world’s largest. While guards protected us from tigers, it was a wild boar that dug up some of our equipment.
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Sailing Around the Bangladesh Coastal Zone
I am back in Bangladesh to explore the distribution of fresh and saline groundwater in the coastal zone, needed for drinking in the dry season.
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A 1,000 Year Drought is Hitting the West. Could Desalination Be a Solution?
Filtering salt out of water is used in many parts of the world that deal with severe drought, but it can come with its own set of problems.

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
