Mountain Forests in Southwest U.S. Failing to Regenerate After Fires, Study Says

Yale Environment 360: Mountain forests scorched by wildfires in the southwestern U.S. in recent years have failed to regenerate as forest ecosystems because of rising temperatures, decreased precipitation, and human intervention, according to a U.S. researcher. Speaking at an environmental conference this week in Colorado, Craig Allen, a research ecologist with the U.S. Geological Survey, described how since the mid-1990s the Southwest's alpine forests have increasingly been replaced by grasslands and shrublands following...

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