http://www.washingtontimes.com/news/2019/feb/3/scientists-no-evidence-climate-change-causing-cold/ > Numerous media outlets cited last week's polar vortex as an example of extreme weather caused by climate change, but it turns out such cold snaps are actually on the decline. > Roy Spencer, principal research scientist at the University of Alabama in Huntsville, posted a graphic of November-March cold waves in the East and Midwest dating back to 1895 that flies in the face of the "global warming causes extreme cold" argument.