Much of the western U.S. is overdue for wildfire, with decades of suppression allowing fuel to build up across millions of hectares. Researchers estimate that 74% of the region is in a fire deficit, ...

Wildfires in the western United States, such as the one pictured earlier this year in Los Angeles, have contributed to global warning, according to researchers. Photo via Los Angeles County Fire ...

Wildfires are an increasingly common feature of life in American West, and researchers are working overtime to understand how the resulting smoke affects air quality, human health and climate change. ...

Smoke from wildfires exacerbated by climate change may cause as many as 71,000 additional deaths per year in the United States by 2050, a study published Thursday in the journal Nature found. That ...