Michigan's air, which has been tainted for several days by wafting smoke from Canadian wildfires, is expected to improve over the weekend, state officials said. But don't breathe too deep a sigh of relief, experts warned: Conditions could decline again early next week.

We believe quality journalism should be available to everyone, paid for by those who can afford it. Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S ...

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida.

Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put out, authorities and experts say.

Smoke from Canadian wildfires impact. While North Texas could see minor impacts, the bulk of the smoke will steer clear of the Lone Star state. The main areas impacted from smoke