Extreme winter freeze that hit U.S. actually used to be common

Winters are growing wimpier. 
In much of the U.S., winter is the fastest-warming season . Though future extreme cold snaps are inevitable — because frigid Arctic air sometimes spills down south — these cold weather episodes are growing, well, less extreme as winters warm .
This GIF below, created by Deke Arndt , the chief of the Climate Monitoring Section at NOAA's National Centers for Environmental Information , illustrates how the warming climate is changing our coldest season. While this February was the chilliest February in the last 32 years, earlier generations — like in the 1930s, 1940s, 1970s, and 1980s — experienced colder February months.  Read more... More about Extreme Weather , Climate Change , Science , and Climate Environment

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