‘Global warming likely to cause colder and snowier winters’, scientists say

http://www.aol.com/article/2014/09/15/global-warming-likely-to-cause-colder-and-snowier-winters/20962706/?icid=maing-grid7%7Cmain5%7Cdl9%7Csec1_lnk3%26pLid%3D529696

Scientists now believe that global warming is to blame for extreme cold snaps in North America during the winter months – and that it will only keep happening.

The “polar vortex” that plunged Canada and the U.S. into historical cold last winter is said by researchers to have occurred because melting polar ice changes weather patterns, according to a study published earlier this month.

A team of Korean and American scientists asserted in a new study that the melting ice causes the northern jet stream (upper level air flow) to shift south and bring polar air with it.

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