giant ‘waves’ in the sky are wreaking havoc on our weather, study says

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Daniel Swain in The New York Times: Heat and Drought Team Up More Frequently, With Disastrous Results

A new study finds that what used to be a rare weather double whammy has been occurring more frequently in recent decades because of climate change. A climate scientist who was not involved in the study, Daniel Swain of the University of California, Los Angeles, said the new research expands on previous work that focused on the West. The most important finding of the new paper, he suggested, was the increasing importance of heat as the driver of droughts. The warming global temperatures, he said, “are making it easier to achieve historically rare levels of dryness.”