201611
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Urban Sustainability and the Sharing Economy
A growing aspect of sustainable urban living is the “sharing economy.” Sharing has always been a part of urban life; we have long shared books in public libraries, nature in parks, and seats on the stoops of row houses. But in the past few years, cities have seen a significant revival and acceleration in sharing…
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Melting Glaciers Help Spur a Message on Climate
On Oct. 5, several small mountain countries with glaciers—Austria, Bolivia, and Nepal—undertook an important step in advancing global action on climate change. They helped the Paris Climate Agreement reach the threshold to enter into force and become legally binding.
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Faculty Profile: Edward Lloyd
Many young law school students dream of one day arguing a case in front of the Supreme Court or of teaching a classroom full of bright future activists who will use their legal skills to defend environmental causes and advocate for human rights. Professor Edward Lloyd is one of few lawyers who, in a vocation…
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Climate Change Has Doubled Western U.S. Forest Fires, Says Study
More Aridity Is Sending Thousands of Square Miles Up in Flames
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Trade Deals and the Paris Climate Agreement
With the approval of the Paris Climate Agreement comes a key question: Do our trade and investment agreements—current and proposed—create the space, send the right signals, and clear the path for the U.S. and other countries to meet their Paris commitments?
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Rising Temperatures Load the Dice for Megadrought Risk
As the American Southwest grows hotter, the risk of severe, long-lasting megadroughts rises, passing 90 percent this century if greenhouse gas emissions continue at their current pace, a new study from scientists at Lamont-Doherty Earth Observatory says. Aggressively reducing emissions can cut that risk.
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Mapping Risks and Building Resilience, from Plot to Plate
Michael Puma, an associate research scientist at the NASA Goddard Institute for Space Studies and a Center for Climate and Life Fellow, works to improve understanding of the fragility of the global food system and how it might respond to major disruptions.
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The New State of Terrorism: How to Prepare
Here are some other things you should know to help cope with a local terror event caused by a “lone wolf” attacker or active shooter situation, from the National Center for Disaster Preparedness.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

