The Polar Vortex Explained in 2 Minutes

January 08, 2014 | 2:13 | Public Domain

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. Learn more at http://wh.gov/climate-change. January 8, 2014.

Download mp4 (88.9MB) | ()

Trick-or-Treat with the President and First Lady November 1, 2010	Weekly Address: Working Together on the Economy October 30, 2010	Full Briefing on Security Alert October 29, 2010	President Obama’s Statement on Security Alert October 29, 2010
Helping Businesses Grow and Hire New Employees October 29, 2010	West Wing Week: "The Mysterious Case of Mysterious Case 55" October 28, 2010	Open for Questions: Pete Souza October 28, 2010	Press Briefing October 28, 2010