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US south-west in grip of historic 'megadrought', research finds

When Ken Pimlott began fighting US wildfires at the age of 17, they seemed to him to be a brutal but manageable natural phenomenon. “We had periodic [fire] sieges in the 80s, but there were breaks in between,” said Pimlott, the former head of the California department of forestry and fire protection. But no longer. “That doesn’t really happen any more. Now you can’t even blink” between fires, he said. “We’re seeing the kinds of fires we have never seen before.” A recent study published in the journal Science helps explains why, revealing that the south-western US is in the grip of a 20-year megadrought – a period of severe aridity that is stoking fires, depleting reservoirs and putting a strain on water supplies to the states of the region.  Read more....

 

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