Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

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

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

P lenty of research shows that respiratory distress and heart attacks spike in the event of smoke exposure; acute impacts of ...

Forecasters warn that hazy, grayish-blue skies could persist for many weeks as fires continue to burn, though most smoke will remain high in the atmosphere.

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for days.

Right now, wildfires are raging across over 7 million acres of boreal forest in Western Canada, a continuous blanket of ...

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching all the way to Europe.

Health specialists were put on leave, and a report on how to protect 20 million workers from wildfire smoke has stalled ...

Wildfires are already burning in parts of Canada, and as they do, many communities are already facing the familiar thick haze ...

Dry conditions in Canada start a chain of events that exacerbates wildfires, injects plumes of smoke in the air and affects air quality in Milwaukee.

As Canada endures another heavy wildfire season, a group of resourceful farmers in British Columbia became an ad hoc fire ...