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A New Spring Course: Bangladesh: Life on a Tectonically Active Delta
During the Spring 2012 semester, the Undergraduate Program in Sustainable Development is offering a new and unique senior Capstone Workshop that explores the world’s largest delta in Bangladesh as an example of development challenges in the 21st century.
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ESP Students Present Initial Findings for Clients at Midterm Presentations
“The midterm briefings showcase each Workshop’s central analytic challenge and progress to date, but what I like best is the students’ palpable excitement at working for a real world client on a pressing problem,” stated Professor Sara Tjossem, who is the faculty advisor for the Workshop project “Building the First Sustainability Rating System for Local…
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“The Population Bomb: Defused or Still Ticking?” Seminar Recap
“Thank you for coming on this gorgeous day, to sit in an airless, lightless room and discuss how to save the world,” said John Mutter, director of Columbia’s PhD in Sustainable Development and a member of the Earth Institute faculty, in welcoming the audience of the Sustainable Development Seminar, “The Population Bomb: Defused or Still…
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Celebrating International Women’s Day: Triumphs and Challenges
There is much to celebrate, this International Women’s Day. Three fabulously courageous women won last year’s Nobel Peace Prize, and just a year earlier the United Nations established UN Women, a new agency dedicated to gender equality worldwide and headed by another strong woman leader and role model, former President of Brazil Michelle Bachelet. School…
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The Groundwater Crisis and the “Grass that Grows in the Water”
Rice is the world’s third-largest crop after wheat and corn; by some estimates it accounts for fully one-fifth of the total calories consumed by the human race. Given these facts, it’s not surprising that countries that have historically struggled with devastating famine would do whatever it takes to ensure strong production of the grain, even…
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Plugging the Leaks in Climate Models
Independent quality controls for climate models are crucial for the quality of future climate change predictions. Not all models are equally good and should be utilized in climate impact studies for such things as crop yield and hydrology that are produced for far-reaching decision-making.
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New York Roofs: Brighter, Whiter, Cooler
The results are in for the first study to systematically measure the effects of the city’s fledgling effort to introduce more reflective rooftops in order to reduce cooling costs and the overall heat burden on the city.
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Bottom Up or Top Down? Another Way to Look at an Air Quality Problem
While not all countries have the financial wherewithal and capacity to deploy ground-based instruments for air-quality monitoring, and for some countries monitoring information is not available to the public, for example, through health advisories, another way exists to assess air pollution levels: through satellites.
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Climate change may be affecting the jet stream
A new study provides evidence that climate change may be affecting the northern hemisphere jet stream, which appears to be moving north and slowing down. The slowing of the jet stream could cause weather patterns to remain in place for longer, resulting in prolonged heat waves or cold snaps.
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