urban sustainability3
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$3.8 Million Raised for Millennium Cities Initiative
The Earth Institute successfully completed a $1.9 million landmark challenge grant, awarded by the Tides Foundation, to benefit the Millennium Cities Initiative (MCI). Because of the Tides challenge and our generous donors, a total of $3.8 million has been raised to support the project’s work to help targeted mid-sized cities across sub-Saharan Africa promote sustainable…
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Researchers From Around the World Converge on New York to Link Climate Change Science with Urban Policymaking Efforts
Urban Climate Change Research Network to be officially launched at May 10-11 Conference
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Environmental Thesis Project: Green Roofs Could Help NYC Sewage System
Using a computer model she built herself, Debra Tillinger, an environmental science major, came up with a prediction as to how much better New York City’s sewage system would function if plant-covered roofs throughout the city slowed the flow of rainwater to the sewers. Tillinger’s research, which was part of her theses project for her…

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