'Smokeageddon' was unprecedented. We can expect more of the

Meteorologists struggled to explain “Smokeageddon,” the acrid campfire haze that settled over the East Coast and Midwest last month, and with good reason: It was unprecedented. Before this summer, code purple and code maroon air quality alerts, the two most dire categories, were almost unknown in the eastern United States. The American Lung Association, which…

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