As reported by OPB, over the past five years, wildfires have scorched more than 36 million acres of land across the United States. But the destruction extends far beyond the burn zones—wildfire smoke travels hundreds, sometimes thousands, of miles, impacting millions of people downwind. Just ask residents of Medford, Grants Pass, and Bend—ranked as the top three smokiest cities in the nation between 2019 and 2023. A research team led by Dan Jaffe and Haebum Lee at the University of Washington...