Depending on which scam they are currently being funded by, scientists blame the polar vortex alternatively on global warming and global cooling.

Scientists have found other indications of global cooling. For one thing there has been a noticeable expansion of the great belt of dry, high-altitude polar winds —the so-called circumpolar vortex—that sweep from west to east around the top and bottom of the world. Indeed it is the widening of this cap of cold air that is the immediate cause of Africa’s drought.

TIME Magazine Archive Article — Another Ice Age? — Jun. 24, 1974