An opaque, autumn haze smothers much of the western United States from the millions of acres burning across forests in the Sierra Nevada and Rocky Mountains. Fire size and severity are rising in tandem with record heat, low winter snowpack, decreased summer rains, and abundant forest fuels. Wildfires in the West doubled in total size between 2000-2015 compared to the previous 15 years, burning an average 6.8 million acres annually in the last decade. This trend has wide-ranging consequences on the health and productivity of our national forests, our drinking water supplies, and wildlife habitat.
