OneNYC
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Daniel Zarrilli Named Columbia’s Inaugural Chief Climate and Sustainability Officer
Zarrilli, who formerly served as the NYC Mayor Office’s chief climate policy advisor, will help the university achieve its climate commitments and reach sustainability goals.
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Going Electric Adds up to a Good Idea for NYC Buses
New York City Transit is considering adding electric buses to its fleet. The purchase price of electric buses is higher than for diesel buses-, but using them would reduce harmful emissions. So is this a good idea?
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How Much Energy Does NYC Waste?
While the New York metropolitan area has been deemed the most wasteful megacity in the world, New York City is considered one of the world’s greenest. But how much energy does New York City waste and what is it doing about it?
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From PlaNYC to OneNYC: New York’s Evolving Sustainability Policy
How do we encourage the wealthy to participate in our real estate market without driving out the rest of us? How can the city tax some of the new real estate wealth to provide housing subsidies for working New Yorkers?
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
