winter weather
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Study Identifies Jet-Stream Pattern That Locks in Extreme Winter Cold, Wet Spells
Recently, scientists connected giant waves in the global jet stream to hot, dry spells gripping widely separated parts of the planet at the same time. Now they have done the same for winter weather.
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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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How Will La Niña Affect Winter in the U.S.?
This phenomenon can cause major changes in climate patterns. See what’s in store for your region.
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Analyzing Winter Storm Risk and Resilience in a Changing Climate
A new study analyzing storm intensity and impacts in the New York metro area aims to inform how communities can better prepare for winter storms and enhance resiliency as the effects of climate change exacerbate hazards.
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Global weirding?
Mountains of snow line the street, And some days I envy a beard. Ask any shoveler you meet – The weather this winter is weird!
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
