New York City13
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Mass Transit in the Sustainable City
An effective transportation system is to the sustainable city what a well-functioning circulatory system is to a healthy human being. New York City has developed along the path of its subway system.
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Watch: Cities and the Climate Change Challenge
Join us for a symposium on Lessons of Climate Resilience in New York City this Wednesday, Oct. 19, from 6-7:15 p.m. in Low Library on the Columbia University campus.
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Housing in New York City: Updating the History
“Beyond doubt the large question facing New York housing production today has to do with a market that can not provide for the half of our households that are low income.”
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New York City’s Sustainable Dream
New York City is always in the global media and the images of this place are the inescapable backdrop of the emerging global culture. And that culture does not require the luxury consumer goods that are now available in all of the world’s major cities. Its core culture values a place that is safe to…
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Climate Week: Why Does It Matter?
Climate Week NYC 2016, Sept. 19 to 35, features over 70 events bringing together business, societal and government leaders to share ideas, technologies, resources and success stories that are helping to curb climate change and transition to a low-carbon society.
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The World Trade Center Disaster And Our Toxic World
In a dangerous world we must be vigilant in the face of evil, but we must also do our best to reduce self-inflicted wounds. We can do a better job of detoxifying our technology, and of helping those who are victims of attacks and disasters. We owe it to our children and the planet they…

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



