As I listen to the deluge of reports of horrible winter weather from friends back on the east coast, I came across this video by Peter Sinclair from his YouTube series, "Climate Denial Crock of the Week." The part I find most compelling is the animation toward the end of this short video showing what looks an awful lot like the displacement of cold Arctic air down into North America and Eurasia by much warmer (as high as 20 degrees F) in the Arctic.