The American West’s megadrought deepened so much last year that it is now the driest in at least 1,200 years and is a worst-case climate change scenario playing out live, a new study finds.
A dramatic drying in 2021 — about as dry as 2002 and one of the driest years ever recorded for the region — pushed the 22-year drought passed the previous record-holder for megadroughts in the late 1500s and shows no signs of easing in the near future, according to a study MondayThe study calculated that 42% of this megadrought can be attributed to human-caused climate change.
Matt Lisignoli walks through an irrigation canal that ran dry in early August after the North Unit Irrigation District exhausted its allocated water on Sept. 1, 2021, near Madras, Ore. The American West's megadrought deepened so much last year that it is now the driest it has been in at least 1200 years and a worst-case scenario playing out live, a new study finds.
“For this drought to have just cranked up back to maximum drought intensity in late 2020 through 2021 is a quite emphatic statement by this 2000s drought saying that we’re nowhere close to the end,” Williams said. This drought is now 5% drier than the old record from the 1500s, he said.
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