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Global Warming Caused the Polar Vortex, White House Says in New Video

Jan 9, 2014

The Obama administration is pushing back on skeptics who say the polar vortex proves climate change is a hoax.

In a new video to be posted on the official White House website Wednesday, President Obama's science adviser, John Holdren, warns against buying into the idea that a cold snap disproves that the earth is getting warmer overall.

"If you've been hearing that extreme cold spells, like the one we're having in the United States now, disproves global warming, don't believe it," he says in the video.