Polar Vortex Explained in 2 Minutes
President Obama's Science and Technology Advisor, Dr. John Holdren, explains the polar vortex in 2 minutes—and why climate change makes extreme weather more likely going forward.
File 46024 is a 84.8MB MP4 Video
Uploaded:
Mar4 14
Last Modified: 2014-03-04 09:19:31
https://serc.carleton.edu/download/files/46024/polar_vortex_explained_2.mp4