Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest.

The number of wildfires caused by humans vs. lightning strikes has varied over the years, but Natural Resources Canada ...

The smoke reaches Europe Canada’s wildfires are so large and intense that the smoke is even reaching Europe, where it is ...

With 174 active wildfires burning across Canada, several U.S. states are under air quality alerts due to the traveling smoke from these flames.

Wildfires in Canadian provinces of Manitoba, Alberta, Ontario and Saskatchewan are creating smoke visible in Michigan. Here's ...

Some oilsands producers are removing workers and shutting production from their sites as wildfires rage in northeastern ...

Wildfire smoke from Manitoba, Canada, will blow across two dozen states through Saturday, reducing air quality and creating ...

Canadian wildfires continue to burn, and plumes of smoke linger over Michigan. Air quality advisories, alerts on June 5.

The fires are burning out of control in parts of Canada, forcing tens of thousands of people to evacuate their homes amid the ...

Smoke from Canadian wildfires carried another day of poor air quality south of the border, where conditions in parts of Minnesota, Wisconsin and Michigan were rated 'very unhealthy' Tuesday.