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 ...

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 ...

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.

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 ...

Extreme heat has become more common—as both research and lived experience show—but when it arrives is a different question. A new study finds that rather than occurring only during warm seasons, ...

On June 29, 2026, the snow accumulated by Switzerland’s glaciers over the course of the previous winter had melted. Known as Glacier Loss Day, this date marks the point at which further melting begins ...

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 ...

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 ...