The current El Niño will break all sea-surface temperature records to date and will very likely deliver unprecedented weather ...

Through Columbia Climate School programs, students conducted hands-on climate research to build scientific, analytical and ...

Scientists are studying fossil coral reefs in the Cook Islands to reconstruct sea levels during the Last Interglacial, and hoping to improve projections of future change.

New analyses of ancient cattle, sheep and goat bones suggest that the rapid spread of introduced livestock 1,200 years ago ...

Led by researchers at NOAA and Columbia University, the Constraining Ocean Carbon with Optimized Observing (COCO2) project ...

Columbia Climate School in the Green Mountains is a two-week campus-based program in Vermont for high school students to mobilize action, drive impact and effect change in response to our warming ...

As a senior pursuing his degree in sustainable development at Columbia, Dylan Dettloff jumped at the opportunity to take a newly offered course in spring 2025: Climate & Sustainable Water Systems ...

Methane emissions from the New York City metropolitan area are largely driven by natural gas use, according to a new study published today in Atmospheric Chemistry and Physics by researchers at the ...

View of the 9/11 Memorial south pool, which includes the names of victims killed at the South Tower and on Flights 175, 77, and 93. Photo: Nadia Eimandoust via Commons As we commemorate the 25th ...

Methane is an especially potent greenhouse gas, causing much more warming than carbon dioxide on a unit-for-unit basis—and a new, uniquely long-term study of emissions at a New Jersey landfill ...

Though nearly three-quarters of Earth’s surface lies beneath the oceans, the seafloor remained largely uncharted until the mid-20th century. In 1948, geologist and cartographer Marie Tharp came to ...

Scorched earth and blackened tree trunks caused by a large bush fire in the southern Sydney suburb of Barden Ridge. Credit: John Dowling / iStock Two of the world’s most fire-prone regions have ...