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. ...

Wildfires in the U.S. west are helping fuel climate change, research shows Their smoke pumps chemicals into the air that react with sunlight to create ozone Ozone is a key factor in global warming, ...