Wildfires are making the US smoggy again, reversing progress on cleaner air, study finds
- Posted on June 4, 2026
- By The Toronto Star
- 0 Views
- 1 min read
Wildfires are making the US smoggy again, reversing progress on cleaner air, study finds
WASHINGTON (AP) — For more than a decade, the United States dramatically reduced its national smog levels, but since 2015 smoke from increasingly larger wildfires is reversing that clean-up trend
