sewage treatment
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Building and Financing the Infrastructure of a Sustainable New York City
The city’s environmental sustainability effort spans many agencies and needs control and coordination by a senior official with experience and clout.
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An Environmental Agenda for NYC’s New Mayor
Our new mayor should let our environmental actions do the talking for the next eight years. It would be a refreshing change.
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Is the Hudson Swimmable? New Program Aims to Test the Waters
Ongoing Work By Scientists Will Supply Data to the Public
During COP30—the 2025 UN Climate Change Conference taking place November 10–21 in Belém, Brazil—experts from Columbia Climate School and Columbia University will be contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
