Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

In the upper Midwest of the United States, Michigan, Wisconsin and Minnesota have issued air quality warnings as smoke from ...

Environment Canada says wildfire smoke conditions in Eastern Ontario and Western Quebec are expected to continue into ...

Wildfire activity has not slowed down in northwestern Ontario, as three First Nations remain under evacuation, with hundreds ...

Much of Ontario remains under a special air quality statement on Friday morning as a haze of wildfire smoke chokes out the ...

Environment Canada has issued a special air quality statement for the Toronto area and most of southern Ontario, stretching ...

For air quality, meteorologists’ models show smoke is likely to drift back to southern Ontario late Saturday or Sunday.

Prolonged exposure to wildfire smoke can have short- and long-term impacts on one's health, especially for those with chronic ...

More toxic than other sources of pollution, wildfire smoke can cause a range of health effects, from mild coughs, itchy eyes and headaches to dizziness, wheezing, chest pains, asthma attacks, ...

Toronto’s air quality was briefly the worst in the world today as smoke from wildfires drifts into the region.