Environmentscore 545·6 metrosupdated 1h ago

Wildfires Reverse US Smog Reduction Progress, Study Finds

A new study reveals that smoke from increasing wildfires is reversing over a decade of progress in reducing national smog levels in the U.S. Since 2015, average ground-level ozone has increased by 4%, leading to an estimated 318 additional deaths annually due to air quality deterioration.

Where it's breaking

Local coverage

Sources cited

Original outlets that filed on this story across the contributing metros. Click through for the underlying coverage.

What this is

A national rollup is a story Executive Producer detected breaking in multiple US metros at once. Each contributing market has its own deduplicated cluster from local broadcast, print, government, and community sources — this page links them together so a journalist can see the full national footprint. We are a pointer, not a publisher.Every linked headline goes back to the local cluster and from there to the original outlet — that's the URL to cite. A lead, not the law.