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1 .This is Scientific American 60-Second Earth. I'm David Biello.Your minute begins now.
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2 .In more than a decade of reporting on climate change I can say one thing with absolute certainty.
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3 .When it's cold outside, like during this recent polar vortex in the U.S., people start thinking this whole global warming thing must be overblown.
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4 .The opposite is also true.
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5 .Which is why the next summer of El Nino is going to do more for action to combat climate change than any activist or scientific study.
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6 .Don't believe me?
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7 .A new social science study in the journal Nature Climate Change backs my anecdotal experience.
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8 .The report describes the so-called local warming effect.
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9 .This effect is a result of people tending to rely on, "less relevant but available information… in place of more diagnostic but less accessible information."
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10 .In other words, today's temperature matters a lot more to belief in the problem of global warming than any understanding of how climate change actually works.
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11 .The social scientists ascribe such thinking to the fact that a cold spell or heat wave prompts memories of other similar weather events and thus makes one more or less likely to believe in global warming at that moment.
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12 .And that means the recent bitter chill of the polar vortex wasn't unusual for prompting climate skepticism.
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13 .What was really unusual was how many decades it had been since the last deep freeze in the 1990s and how quickly we forget.
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14 .Your minute is up, for Scientific American 60-Second Earth. I'm David Biello,Thanks for listening.
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