Water Scarcity16
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Scary Water Study from the NRDC
A fascinating and frightening recent study from the National Resources Defense Council unveiled serious threats to water sustainability in the United States over the coming decades. In an era of rapidly unfolding climate change, the Council’s research found that more than 1,100 counties, or one third of all counties in the lower 48 states, face…
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Water in Paris
I have been spending the month of July in Paris, France for a study abroad program, and during my time here, I have been able to observe different water habits of people abroad. My observations are in no way absolute, but I have found several interesting trends in water in Paris that I wanted to…
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The Glaciers Disappear: The Startling Photos of David Breashears
Mountaineer, photographer and documentary filmmaker David Breashears is obviously a tough man—he has, after all, reached the summit of Mount Everest over five times, one of the very few people in the world to even attempt such a feat. In person, though, the soft-spoken Breashears comes off less like an indomitable mountain conqueror than like…
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The PlayPump: What Went Wrong?
Earlier this week, PBS’s Frontline ran a story about the PlayPump, a technology that was supposed to bring drinking water to thousands of African communities by harnessing the power of children at play. Now dozens of PlayPumps in Mozambique sit idle, and in many villages PlayPumps have been removed, and hand pumps reinstalled.
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Who owns the Nile?
Who owns the Nile? Nine countries want to have a say in answering that question, and they don’t agree. The great river moves through Burundi, Egypt, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, Uganda, and the Democratic Republic of the Congo, so they all may claim her as at least partly their own.
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Applied Climate Research: A Conversation with Stefan Sobolowski (Part 2)
In part 1 of this interview, I talked with Columbia Water Center hydroclimatologist Stefan Sobolowski about the effects of continental snowcover on climate, and the implications of his research on climate change. In part 2, we talk about the problem of uncertainty in climate prediction models, extreme weather events, the regional variation of climate change…
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The Permaculture Approach to Water
Permaculture has many facets, but one of the most exciting is its approach to water. Permaculture designers believe that through intelligent landscape design, it is frequently possible to go beyond conservation of water to actually recharge groundwater supplies.
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Water, Another Crisis for Iraq
In a place like Iraq, our attention is on the big issues, and we might forget that life also goes on for regular people. They need to grow crops and wash dishes and make tea. For many people in the country, those mundane things can be every bit as big an issue. If you don’t…
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The Problem of Lawns
In the United States, lawns are so ubiquitous that they seem to be almost a basic human right. That’s a serious problem, given the enormous resources that our North American lawn-fetish consumes.
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
