Wildfires have worsened ozone levels across the United States so much over the last decade that they have reversed around four years of progress, a new study has found. Surface ozone levels, or smog concentrations, steadily increased from 2015 to 2024, deteriorating air quality across the Midwe...
Source: [Inside Climate News](https://insideclimatenews.org/news/09062026/wildfires-reset-air-quality-progress/)