White House says ‘polar vortex’ likely caused by global warmingMarket Watch
Jan. 09, 2014
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Related: Warmist: 'Every Weather Event in the Modern World is Attributable to Climate Change'A White House blog and video Wednesday characterized the polar vortex that spread bone-chilling weather over much of the country as likely having been caused by global warming.
John Holdren, President Obama’s science adviser, says in the video: “If you’ve been hearing that extreme cold spells like the one that we’re having in the United States now disprove global warming, don’t believe it.”
Holdren goes on to say that “no single weather episode can either prove or disprove climate change.” However, he adds that a “growing body of evidence suggests that the kind of extreme cold being experienced by much of the United States as we speak is a pattern that we can expect to see with increasing frequency as global warming continues.”