| http://www.w3.org/ns/prov#value | - As explained by Andrew Freedman at ClimateCentral.org, what???s occurring is an event known as sudden stratosphering warming, in which the polar vortex of westerly winds in the winter hemisphere suddenly slows down or even reverses direction over the course of a few days. ???While the physics behind sudden stratospheric warming events are complicated, their implications are not: such events are of
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