New York City22
-
Opening the Door to More Rooftop Farming?
The NYC Department of City Planning has proposed new zoning rules to make it easier to retrofit buildings for energy efficiency – including a provision on rooftop greenhouses.
-
One Billion Gallons a Day, Naturally
If not for the amazing feats of planning and engineering that provide access to clean water, New York City would never have become the essential node in the many meshworks of the world that it is today.
-
Building NYC’s Resilience to Climate Change With Green Infrastructure
Climate change will impact New York City through more frequent heavy precipitation, sea level rise and rising temperatures. To strengthen its resilience, the city is planting trees and mini-parks, restoring wetlands and installing more permeable surfaces.
-
In New York City: 5,000 Acres and a Mule?
It is no surprise that New York City holds one of the world’s densest agglomerations of people and infrastructure; but according to a new report, it is also hides a huge archipelago of potential farmland.
-
A Former Teacher Learns to Be an Effective Change Agent
Expected to graduate in May 2012, Cindy Hollenberg, is confident that climatology has been her favorite class to date because it’s dynamic, but she can’t choose just one area of environmental policy and management that interests her most. “I have a difficult time choosing just one for the same reason that I was drawn to…
-
Fracking Gains Ground in New York
Fracking is back in the news again, and in a big way. On July 1, the New York State Department of Environmental Conservation, backed by Gov. Andrew Cuomo’s administration, released its recommendations regarding the controversial natural gas extraction technique. Amidst the din of statewide protests, the agency supported fracking in most of the state’s portion…
-
Ripple Effect Author Talks Efficiency; Cleanup
The outlook for global water is bleak, but Alex Prud’Homme still believes in the power of human ingenuity.
-
Science Education with Trees and Canoes
Students from New York City, Singapore and the Netherlands test their skills this weekend in the woods and on the water near Lamont-Doherty Earth Observatory in the International Student and Teacher Exchange Program.
-
Clean Water vs. Cheap Energy: Can We Have Both?
The social fabric of a water quality debate: Anti-fracking protesters converge on Albany… again. A battle of wills between advocates of clean water and cheap energy ensues.
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
