201944
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How Pollution and Greenhouse Gases Affect the Climate in the Sahel
A recent study is the first to show that pollutants and greenhouse gas emissions have directly affected the 20th century evolution of rainfall over a region.
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Shade-Grown Coffee Helps Ecosystems and Farmers
A new study finds that coffee farmers could be better off financially if they used shade-growing practices for part of their production.
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A Snowman’s Toils Under the Sun
One morning, a tiny snowman appears, seated on a bench near the corner of 112th Street and Broadway in New York City. Let’s take a picture every time we go by. Maybe we will learn something.
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The High Stakes, High Risk Work of Covering Climate
From polar bears to budget cuts, a climate reporter’s job is never easy. But for some, it’s worth the struggle.
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El Niño Arrives, Unfashionably Late
In February, the long-predicted El Niño event in the Pacific began to finally take shape. Here’s what it could mean for precipitation levels over the next few months.
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The Aftermath of China’s Waste Ban
The initial ban created a worldwide headache for scrap managers. The new version of the ban will surely lead to migraines.
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Energy Efficiency: A Clue to Politically Feasible Climate Policy
The only politically feasible way of combatting climate change is to invest in research and development and infrastructure that makes our energy system more efficient and less dependent on fossil fuels.
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Marly Isler: From International Sailor to Environmentalist
Before enrolling in the Sustainability Management program, Marly Isler was a member of the U.S. Olympic Sailing Development Team.
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Filmmakers Gather to Preview and Discuss ‘Women, War and Peace II’ Series
The March 12 event, which is open to the public, will focus on four never-before-told stories of women who risked their lives for peace, changing history in the process.
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
