Tip #699


School may be closed due to the polar vortex, but the learning never ends. Dr. John Holdren, Assistant to the President for Science and Technology explains what the polar vortex is in this WhiteHouse.org video: www.whitehouse.gov/share/polar-vortex-explained-two-minutes. Then check out the We the Geeks: “Polar Vortex” and Extreme Weather video from the follow up Google+ Hangout: www.whitehouse.gov/blog/2014/01/08/we-geeks-polar-vortex-and-extreme-weather

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