El Niño-Southern Oscillation
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El Niño 2026: How Big Could It Get?
The current El Niño will break all sea-surface temperature records to date and will very likely deliver unprecedented weather-related impacts around the world.
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You Asked: What Exactly Is a ‘Super’ El Niño?
Columbia Climate School experts explain what a strong El Niño could mean for the planet this year.
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Indonesia May Soon Lose Its Last Glaciers
Scientists estimate that Indonesia will lose its two remaining glaciers by 2030—a warning for glaciers around the world.
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A Climate Change Signal in the Tropical Pacific
Research from the Lamont-Doherty Earth Observatory has the world’s climate scientists rethinking their models.
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Part of the Pacific Ocean Is Not Warming as Expected. Why?
Climate models predict that as a result of human-induced climate change, the surface of the Pacific Ocean should be warming. But one key part is not.
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Does the El Niño Southern Oscillation Actually Matter for Food Security?
And why should we care what causes a drought?
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Webcast Today: Rich and Poor, and the Essence of El Niño
How does El Niño work, and how does it affect our climate, food supplies and water availability? The two men whose scientific work has been key to solving these puzzles will be honored Wednesday with the Vetlesen Prize, marking a major achievement in Earth sciences. And this afternoon, they’ll have something to say about it…
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Scientists to Reap Ice From Indonesia High Peak
A Grueling Trek, a Fast-Melting Glacier, and Vital Climate Signs
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Study Reconstructs Asia’s Most Devastating Droughts
Key to Understanding Monsoon and Climate’s Impacts
On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!
