(Bloomberg) -- A deep freeze is about to descend on North America, Europe and Asia thanks to record high temperatures across the Arctic.
How’s that? “Think of it like a seesaw,” said Matt Rogers, president of Commodity Weather Group LLC in Bethesda, Maryland. If winter temperatures rise north of Alaska, that “forces an equal-opposite downward-southward push. The cold essentially has to go somewhere else.”
Meteorologists theorize the phenomenon works this way: Warmth in the northern polar region helps lock in jet-stream kinks that drag cold air south and sets up conditions that weaken the polar vortex, the pressure zone that usually traps the chill in the northernmost part of Earth. Frigid thermometer readings are, as a result, delivered to the Northern Hemisphere. So, warm Arctic, cold continents.
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