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JOHN MCCOLGAN/US FOREST SERVICE/AP
Inferno: On Aug. 17, 86 major wildfires, including this one in Sula, Montana, raged in a dozen western states. Five million acres of U.S. land had already burned in the year 2000, more than double the annual average for recent decades. Was this an aberration, or had global warming so affected the planet that this was a sign of seasons to come?.
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