Summary: What's causing our air to turn an apocalyptic orange? Is it safe to breathe? How long will this dystopian atmosphere stick around? Chronicle reporter Michael Cabanatuan has talked to scientists and is here to explain. | Full wildfires coverage: sfchronicle.com/wildfires | Unlimited Chronicle access: sfchronicle.com/pod Learn more about your ad choices. Visit megaphone.fm/adchoices
