Wildfire smoke from Canada is blanketing the skies in the Midwest, leaving millions with dangerous breathing conditions.

Minneapolis has the second-worst air quality in the world on Friday morning as wildfire smoke from Canada continues to linger ...

In central Utah, the Monroe Canyon Fire has burned 48,000 acres and is 7% contained as evacuation orders have been put in ...

Chicago air quality remains in the top five worst in the world Friday with an Air Quality Alert in place from Canadian ...

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the Midwest and worsening air quality, ...

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

The state of Minnesota is entering another in a long string of summer days marred by air quality alerts. Poor air quality ...

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

There is an air quality alert for all of Southeast Michigan until midnight Saturday, the Michigan Department of Environment, ...

Temperatures remain cool but smoke from wildfires in Canada will make the sky hazy through Saturday ...

Wildfire smoke carries large amounts of particulates and gases. These can act as ozone precursors, causing air to exceed the ...