Weather & Extremes
What Is the Polar Vortex? How It Sends Arctic Cold South
The polar vortex is a ring of cold air and strong winds circling the poles. See why it sometimes weakens and lets Arctic air flood into the US and Europe.
Space, Earth and the natural world, explained.
The polar vortex is a ring of cold air and strong winds circling the poles. See why it sometimes weakens and lets Arctic air flood into the US and Europe.
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