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Polar Vortex Escape: Arctic Ice Melt Lets Cold Air Flow South: Study

Polar Vortex Escape: Arctic Ice Melt Lets Cold Air Flow South: Study

Remember a frigid vortex, a outrageous mass of Arctic atmosphere that can thrust most of a U.S. into a low freeze? A new investigate says that as a universe gets warmer, tools of North America, Europe and Asia could see some-more visit and stronger visits of that cold air. Shrinking ice in a seas off Russia leaves some-more H2O uncovered, permitting some-more appetite to enter a atmosphere and weakening a jet stream, that customarily keeps Arctic atmosphere from erratic south, pronounced investigate co-author Jin-Ho Yoon of a Pacific Northwest National Laboratory in Richland, Washington.

In a study, published Tuesday in Nature Communications, scientists from South Korea and United States found that many such cold outbreaks happened a few months after scarcely low sea ice levels off Russia. The investigate saw a same couple regulating chronological information and mechanism simulations, according to lead author Baek-Min Kim of a Korea Polar Research Institute. Sea ice in a Arctic reached a record low in 2012; it’s somewhat adult this year. Kevin Trenberth, meridian investigate arch during a National Center for Atmospheric Research in Boulder, is skeptical. His investigate points some-more to a Pacific for changes in a jet tide and frigid spiral behavior.

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— The Associated Press

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