water matters25
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A New Look at Global Water Scarcity from Columbia Water Center
Columbia Water Center is committed to sharing and disseminating the knowledge from research and development projects we have completed and are currently working on. We aim to create a collaborative environment in which progress towards understanding and addressing the increasing demands and scarcity of freshwater can be made in the 21st century. To help visualize…
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Finding Answers to the Worsening Water Crisis in Gujarat, India
As explained in a recent blog post, falling groundwater levels in the Northern regions of the state of Gujarat, India, are reaching dramatically dangerous proportions. Columbia Water Center (CWC), however, believes that there are numerous technologies and practices that could save significant amounts of water and energy. Farmers have shown interest in applying them, but…
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In the Arctic More Than Elsewhere, Things Are Heating Up
According to a new international study, water flowing into the Arctic Ocean from the North Atlantic is the warmest it has been in the past 2,000 years.
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Solving Urbanization Challenges by Design – The Science of Green Roofs (part 2)
Patricia J. Culligan is a professor of civil engineering and engineering mechanics at Columbia University and the Vice Dean of Academic Affairs for Columbia Engineering. In part two of this interview she talks about the challenge of quantifying the economic benefits of green roofs, the potential for rooftop agriculture, and what it means to “solve…
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Solving Urbanization Challenges by Design – The Science of Green Roofs
Patricia J. Culligan, professor of civil engineering and engineering mechanics, discusses her work with the Columbia University Green Roof Consortium to quantify the benefits of green roofs.
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Michigan Case Demonstrates Growing Importance of Courts for Water Issues
According to a recent report by Deutsche Bank, the number of US lawsuits related directly or indirectly to climate change rose by nearly 300% between 2009 and 2010. In addition to cases focused more broadly on climate change, there have also been a growing number of cases focused specifically on water regulations. Examples of the…
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Our Oceans: A Plastic Soup
“Humanity’s plastic footprint is probably more dangerous than its carbon footprint,” said Captain Charles Moore, who, in 1997, discovered the Great Pacific Garbage Patch. Its name is misleading because the huge expanse of floating marine debris is actually more like a soup of confetti-sized plastic bits, produced by the runoff of our throwaway lifestyle that…
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Desalination: Yesterdayʼs Solution (part 3)
Worldwide, humans have quickly and wastefully consumed water from the cheapest sources by over-pumping aquifers and over-allocating rivers. Weʼve turned to technology to eek out more but technology is not without its costs. Every remaining incremental gallon of water will come at a higher and higher price. Are we nearing a breaking point?
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Despite Grim Water Futures, China and US Discuss Everything but Water
Notably absent from this week’s program is any planned dialogue regarding energy demand and water supply, two issues whose inverse trajectories are threatening the environmental and economic futures of both nations.

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026
