202325
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The Energy Transition Will Need More Rare Earth Elements. Can We Secure Them Sustainably?
Scientists are exploring a variety of ways to provide raw materials for the energy transition with less harm to people and the planet.
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Ivan Tolstoy, Who Elucidated Travels of Sound Through Oceans and Air, and Helped Map Seabeds, Dies at 99
From beginnings as an exile from the Russian Revolution, a life spent studying geology and long-distance acoustics at sea and in the atmosphere.
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Christine Appah-Gyamfi Empowers Students to Lead on Environmental Justice Issues
In her class at the Columbia Climate School, this environmental justice lawyer provides tools and hands-on opportunities for her students to generate real-world impacts.
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We Need to Advance Solid Waste Technology
To implement a true circular economy, we need to systematically and automatically reuse most of the material placed in our trash bags.
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Students Spend Spring Break Working on Sustainable Development Projects in Rwanda
Columbia undergrads partnered with University of Rwanda students to begin work on two local projects focusing on e-waste recycling and cleaner cookstoves.
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What Tracking Mountain Lions Taught Me About Adaptability
A student in the M.S. in Sustainability Management program discusses the importance of mountain lions to the California ecosystem and how changes in climate and human behavior are getting in their way.
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Inside New York’s Concrete Jungle with Amy Karpati
Ecologist and environmental educator Amy Karpati discusses urban ecosystems and paths to restoration in New York City and beyond.
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Sea Level Rise: A Crash Course for All
Lamont-Doherty Earth Observatory presents a public lecture on the driving forces and dynamics reshaping global coastlines.
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1,000-Plus Years of Tree Rings Confirm Historic Extremity of 2021 Western North America Heat Wave
Scientists quickly pronounced the summer 2021 heat wave that hit western North America to be unprecedented, but they had no long-term physical proof. Now they do.
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
