Understanding the Arctic polar vortex

In late February, as the Southern Plains and Gulf Coast suffered through an unusually strong blast of wintry weather, weather talk turned to the polar vortex and the possibility that the extreme cold was yet another example of weather-gone-wild due to global warming. In this article, we’re talking to two NOAA experts, including PMEL's Jim Overland, about the devastating extreme cold event, the polar vortex, and the potential link to global warming.