Last week, Canadian wildfire smoke blanketed Wisconsin and caused the Air Quality Index to reach the unhealthy level for ...

The Midwest saw some of the worst air quality conditions in the world Thursday, and similar conditions are expected to ...

Air quality reaches red 'unhealthy' category as Canadian wildfire smoke blankets the state, affecting all residents ...

Concentrated levels of smoke near the surface will be unhealthy for sensitive groups but can also reach unhealthy levels for ...

People with heart or lung disease, older adults and children should consider making outdoor activities shorter and less ...

Congressional lawmakers from Wisconsin and Minnesota called on the Canadian Embassy to take action as smoke from Canadian ...

What would otherwise be a pleasant weekend in Southern Wisconsin is being blanketed by Canadian wildfire smoke.

A detailed view of the sun covered by smoke from the Canadian wildfires as air quality alerts were issued across Minnesota ...

Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

Blazes across several Canadian provinces and territories pose health risks to Canadians and their southern neighbours.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at ...

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air ...