Blogging – What is a Polar Vortex?
A polar vortex is a large pocket of very cold air, typically the coldest air in the Northern hemisphere, which sits over the polar region during the winter season.
The frigid air found its way into the United States when the polar vortex was pushed South, reaching southern Canada and the northern Plains, Midwest and northeastern portions of the United States.
– From accuweather.com
President Obama’s Science and Technology Advisor, Dr John Holdren, explains the polar vortex in 2 minutes – and why climate change makes extreme weather more likely going forward.
Check out the video Video produced by The White House below:
Polar Vortex Explained in 2 Minutes
Published on Jan 8, 2014 by Whitehouse
Learn more at wh.gov/climate-change.
2014 North American Cold Wave
Spectacular icy images as deep freeze stretches across North America
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