A bevy of record-setting wildfires have filled western U.S. cities, including San Francisco, with smoke and ash. More than 2.2 million acres have burned in California this year, a record. (Photo courtesy of Josh Kirkland)

Golden Gate Bridge on September 8, 2020. California is currently experiencing its second, third, and fourth largest wildfires in recorded history. (Photo courtesy of Kaitlyn Frysztak)

Birds on a telephone line in the Bay Area on September 9, 2020 (Photo courtesy of Andy Strong for A Strong Photo)

A young man skateboards in front of the boardwalk in Santa Cruz, California, on Aug. 20, 2020, as Smoke from the CZU August Lightning Complex fires have filled area skies. (Anna Maria Barry-Jester/KHN)

Hazy SF on September 9, 2020 (Photo courtesy of Kaitlyn Frysztak)

The massive smoke and ash output in SF and other wildfire-adjacent areas have put people with chronic conditions, such as asthma, even more at-risk, amidst the pandemic. (Photo Courtesy of Josh Kirkland)

San Francisco on September 9, 2020. (Photo courtesy of Josh Kirkland)

Wildfire-produced ash and smoke have led to apocalyptic images, like this, shot in an area between Stayton and Lyons, Ore. (Photo courtesy of Zach Zinda)

The El Dorado Fire in Southern California has burned 11,479 acres and is at 19% containment as of September 10, 2020. (Photo Courtesy of San Bernardino National Forest)