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Contact: Lee J. Siegel
University of Utah

Gabe Bowen, University of Utah

Caption: University of Utah geochemist Gabe Bowen led a new study, published in Nature Communications, showing that the curvy jet stream pattern that brought mild weather to western North America and intense cold to the eastern states this past winter has become more dominant during the past 4,000 years than it was from 8,000 to 4,000 years ago. The study suggests global warming may aggravate the pattern, meaning such severe winter weather extremes may be worse in the future.

Credit: Lee J. Siegel, University of Utah.

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Related news release: Warm US West, cold East: A 4,000-year pattern

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