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‘Ghost Ice Shelves’ and the Third Antarctic Ice Sheet
The Antarctica Peninsula has been referred to as Antarctica’s third ice sheet. Following behind the East and West Antarctic ice sheet in size, one might be inclined to minimize its importance in the effects of melting Antarctic ice, on changes in sea level and other impacts, but that would be an imprudent mistake. The peninsula…
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New York Lets a Thousand Bioswales Bloom
In an effort to curb sewage overflows, New York City has turned to green infrastructure: right-of-way bioswales, green roofs and rain gardens, among other practices. These measures help decrease stormwater runoff by increasing pervious areas and introducing water-loving plants that can absorb some of the water and encourage evaporation.
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Leon Billings, Tom Jorling and the Origins of U.S. Environmental Law
If you had the experience of hearing Leon Billings teach and tell stories, it is hard to believe his voice is no longer with us. He was a great American and an important figure in American environmental history.
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ESP Student Neerada Poduval: Building a Global Perspective
“I am keenly aware of the issues faced on the ground and the importance of political will and buy-in from the private sector to effectively develop and implement policies. … and I know from personal experience that there is immense potential to effect positive change in this field.”
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Sustainable Agriculture Through Innovation and Collaboration
Individuals and institutions are becoming increasingly concerned about the social and environmental impacts and the broader societal ramifications associated with conventional agricultural systems. In response, many are acting to bring into view a brighter future that is capable of satisfying a long list of criteria that define sustainable agriculture.
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A Science-Art Collaboration
Artist Michelle Rogers is painting her latest work, an 8x10ft interpretation of Botticelli’s The Birth of Venus, at the International Research Institute for Climate and Society. She wants her discussions with scientists to help inform her work.
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Photo Essay: Where the Trees Meet the Tundra
Due to warming climate and increasing human exploitation, far northern forests and the tundra beyond are undergoing rapid changes. In northern Alaska, scientists from Columbia University’s Lamont-Doherty Earth Observatory and other institutions are studying the responses of trees at the very edge of their range.
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Where Trees Meet Tundra, Decoding Signals of Climate Change
In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. The northern tree line-a boundary that circles all of earth’s northern landmasses for more than 8,300 miles, and forms the planet’s biggest ecological transition zone–runs through here. Scientists from Columbia University’s Lamont-Doherty Earth Observatory are studying how climate…
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Climate Change Under Trump: A Q&A with Michael Gerrard
For those who favor strong action on climate change, the election of Donald Trump is creating plenty of anxiety and concern. Will Trump set our efforts to curb climate change back? How can those who are concerned about climate change best fight back?
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
