“Scientists Say A Fluctuating Jet Stream May Be Causing Extreme Weather Events”

What surprised the scientists was that the jet stream's meandering has become more frequent. "Since 1960 we get more years when the jet is in an extreme position," Trouet says, either in its northernmost or southernmost position. She adds that this pattern of more frequent, extreme shifts north and south has never been seen before in her 290-year record.


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