The fluctuating layer of smoke in our atmosphere meant that the expected blue skies in the evening and morning have taken on ...

Wildfire smoke is choking Wisconsin for a third straight spring. The hazy, dirty air from Canada — “some of the highest ...

Environment Canada's air quality index has reported moderate to high risk since Saturday morning in Calgary, as many parts of ...

Cooler weather and light rain are reportedly aiding firefighting efforts in certain areas across Canada's Prairie provinces. However, as Dan Spector reports, many regions in the country continue to ...

A 19-person crew, who had been working at a job site near Sandy Lake in northwestern Ontario, are safe after an ...

Canadian Grand Prix is expected to go ahead as planned despite thick wildfire smoke spreading across Montreal.

Despite expected rain Sunday night, Canadian wildfire smoke will continue to impact Michigan on Monday, officials say.

Air quality has improved in much of Quebec and Ontario, but wildfire smoke continues to affect parts of the Prairies, northern Ontario, and eastern Quebec.

The New York State Department of Environmental Conservation and the Department of Health have issued an air quality health ...

Environment Canada says air quality has improved across most of Quebec and Ontario as changes in wind and rain ease the ...

A large fire rages near Sandy Lake First Nation, where Canadian Armed Forces were called to help airlift residents ...

Wildfires forced another 1,000 people to flee their homes in Manitoba, one of two Canadian provinces under a state of ...