Air quality alerts stretch from Alberta to parts of northern Ontario, according to Environment and Climate Change Canada, ...

Smoke from Canadian wildfires is drifting into the U.S., posing health risks. The current fires, though massive, do not rival ...

Smoke from wildfires in Canada are drifting across the U.S., affecting air quality throughout the Midwest, including Ohio.

People in the Northeast may like to think they are not at risk from the wildfire smoke drifting down from Canada because research on health effects comes largely from regions where people are exposed ...