A growing body of research indicates that polar vortexes are likely becoming more frequent due to the climate crisis.

A weather phenomenon known as a polar vortex is likely to hit a large swath of North America this week and into next, potentially disrupting travel for millions of people during the Thanksgiving holiday. A polar vortex happens when air in the Arctic is destabilized, often by intruding warming air currents, and moves extreme cold air southward. The type of polar vortex this current system…

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