Water34
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Courses in Conservation & Sustainability
Are you interested in cultivating the skills necessary to implement environmental change? Do you want to learn more about conservation and environmental sustainability, including ecosystem services and function?
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What’s Holding Water Conservation Back in Rockland County?
Rockland County’s main water provider, United Water NY, wants to build a treatment plant on the Hudson River that would deliver more freshwater to Rockland taps. As the project awaits state approval, a new debate on water consumption has emerged. Should people be encouraged, or even required, to use less? And if so, how?
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Preparing for a Future of Perpetual Drought
The Intergovernmental Panel on Climate Change projects that droughts will likely increase in central North America this century. How can we prepare for a future of perpetual drought?
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New Program in Tropical Biology and Sustainability
The Tropical Biology and Sustainability Program will allow students the opportunity to study ecology, evolutionary biology, conservation biology, environmental engineering, and sustainable development in the environmental hub of East Africa.
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Brief Broadleaf Forest Happenings: tulip goodness, delighted about Turkey, and drought
I have to call myself out. Earlier I had professed to being a former coniferphile. That was, of course, silly. I like coniferous trees very much. Half of my business is made from this lovely branch of the tree family. This introduction is a lead in to say that this blog will be quieter while…
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Investigating Impacts of Increased Fertilizer Use in Africa
The rains came late this year in Kenya. I was there for several months in the winter and spring to conduct research for a post-doctoral fellowship, examining the consequences of increases in fertilizer use on soil fertility, maize yields, nitrogen gas emissions and nitrogen leaching losses.
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Water Center, PepsiCo Foundation Present Sustainable Water Successes at Rio+20
The rural communities of Ceará, Brazil, had long been accustomed to drought and the problems that result: food insecurity, death of livestock, and conflict over scarce water resources. While Ceara’s problems may have been typical of a water scarce region in the developing world, the work of the Columbia Water Center and PepsiCo Foundation has…
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Water Shortages in Jordan
By Melissa von Mayrhauser Jordan is the third most water scarce country in the world, while its population is rising at approximately 3% annually. Columbia’s SEE-U Jordan program is investigating the reasons behind the country’s lack of water security while also considering possible solutions. We dove into our studies by swimming in the Red and…
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Bringing Access to Safe Water in Ceará, Brazil: PepsiCo Foundation and the Columbia Water Center to Participate in Rio+20
The work of the PepsiCo Foundation and the Columbia Water Center in Ceara, Brazil, provides a case study in the role public-private partnerships in the sustainable management of water sources.

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
