North Atlantic Oscillation
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Debunking the Solar-Cycle/North Atlantic Winter Weather Connection
The North Atlantic Oscillation is a key driver of winter weather patterns over the northern hemisphere. In recent years, research has claimed a correlation between the NAO and the 11-year solar cycle. A new paper debunks that claim.
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Climate and Cod
A new study finds that the climatological phenomenon known as the North Atlantic Oscillation contributes to fluctuations in the cod population off the New England coast, and could help fishery managers protect the population from future collapse.
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Greenland’s Ice Is Getting Darker, Increasing Risk of Melting
Feedback loops from melting itself are driving changes in reflectivity
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Study Undercuts Idea That ‘Medieval Warm Period’ Was Global
Vikings May Not Have Colonized Greenland in Nice Weather
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New Drought Atlas Maps 2,000 Years of Climate in Europe
Completes the First Big-Picture View Across Northern Hemisphere
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Converging Weather Patterns Caused Last Winter’s Huge Snows
A Warming World Can Still See Severe Storms
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20th Century One of Driest for Northwest Africa in 900 Years
Ancient Trees Give Context to Recent Droughts
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
