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Why a Warming Arctic May Be Causing Colder U.S. Winters

             

A piece of ice breaks from Juneau's Mendenhall Glacier in Alaska.  PHOTOGRAPH BY PETE MCBRIDE, NATIONAL GEOGRAPHIC CREATIVE

A new study shows how a warming Arctic could negatively impact regions thousands of miles away.

CLICK HERE - Nature Geoscience - Reduced North American terrestrial primary productivity linked to anomalous Arctic warming

news.nationalgeographic.com - by Sarah Gibbens - July 11, 2017

When a U.S. Republican senator threw a snowball onto the Senate floor in late February of 2015, he used it to underscore his belief that human-made climate change was an alarmist conclusion. The snowball had been rolled from the Capitol grounds in Washington D.C., which, at the time, was experiencing an uncharacteristically cold winter.

If global warming was real, he posited, how could the nation's capital experience such severe cold?

Uncharacteristically cold winters, however, just might be one of the most hard felt effects of climate change, according to a study published in Nature Geoscience by a team of researchers.

The study found that unusually cold temperatures in northern North America and lower precipitation in the south central U.S. all coincided with periods of warmer Arctic weather.

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