Catskills reservoirs
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Trip to the Catskills Teaches Students About NYC’s Water Supply
The visit revealed how collaborative efforts help to ensure the city receives high quality water with low treatment costs, while providing local jobs.
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The Catskill Watershed: a Story of Sacrifice and Cooperation
It has become so easy for us here in NYC to turn on the tap without realizing the hardship, unimaginable sacrifices and money that have allowed us this incredible resource at the mere flick of a finger. We returned to the downstream end of the aqueducts with a newfound appreciation of the hard work we…

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
