Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...
The coldest burst of Arctic air this season is coming to put an icy exclamation point on America's winter of repeated polar vortex invasions, meteorologists warn. And it will stay frozen there all ...
A study in the journal Science Advances reveals how polar bears manage to get wet in the cold without their fur freezing.
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