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

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

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 ...

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

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

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

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.

Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put out, authorities and experts say.

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

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.

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