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Changes in jet stream since 1960 responsible for uptick in extreme weather

Changes in jet stream since 1960 responsible for uptick in extreme weather

Science
Jan. 12 (UPI) -- Scientists have identified a link between jet stream variability during the last half-century and increases in extreme weather in Europe, including storms, flooding, drought, heatwaves and wildfires.Using tree rings from the British Isles and Mediterranean, scientists at the University of Arizona sussed out late-summer weather patterns across Western Europe going back nearly three centuries, to 1725."We find that the position of the North Atlantic Jet in summer has been a strong driver of climate extremes in Europe for the last 300 years," Valerie Trouet, a scientist at Arizona's Laboratory of Tree-Ring Research, said in a news release.The work of Trouet and her colleagues helped provide context for modern observations of the jet stream's seasonal patterns. Their data -- p...