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

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
