As at least half a dozen fires in Colorado force hundreds to evacuate, and have closed a national park, some residents say they're shocked at how quickly the fire has spread. The speed of wildfires is actually something Colorado ecologists have been studying, and they say history may provide clues on how to slow it down. A key focus is the blanket of post-card perfect evergreen forests the state is known for, but whose lower elevations have become far more crowded than they were a century ago. "The first thing I see is we're missing the meadows. Where are the meadows?" asks Tony Cheng, director of the Colorado Forest Restoration Institute at Colorado State University. Cheng, along with Peter Brown of the Rocky Mountain Tree-Ring Research...
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Looking To History To Combat Wildfires