29 October 2007

Why California's Wildfires are America's Future

Sharon Begley

I'm pretty conservative about attributing weird weather and other climate anomalies to global warming: all you can say is that a record-setting hot October, or a string of 70-degree days in January in New York, is consistent with what a greenhouse world would be like. But when scientists go on record with a specific prediction of how climate change will play out, and when it indeed plays out that way, attention must be paid.

Last year, a study in the journal Science found that "large wildfire activity increased suddenly and markedly in the mid-1980s, with higher large-wildfire frequency, longer wildfire durations, and longer wildfire seasons." The greatest increases were in forests of the Northern Rockies, but was seen throughout the west The pattern of western fires matched what would be expected not from changes in land use--mostly logging and ranching--but from climate change.

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