2017-09-23, 04:15
Winter cold extremes linked to high-altitude polar vortex weakening
When the strong winds that circle the Arctic slacken, cold polar air can escape and cause extreme winter chills in parts of the Northern hemisphere. A new study finds that these weak states have become more persistent over the past four decades and can be linked to cold winters in Russia and Europe.
http://feeds.sciencedaily.com/~r/science...094027.htm
When the strong winds that circle the Arctic slacken, cold polar air can escape and cause extreme winter chills in parts of the Northern hemisphere. A new study finds that these weak states have become more persistent over the past four decades and can be linked to cold winters in Russia and Europe.
http://feeds.sciencedaily.com/~r/science...094027.htm