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

The state Department of Environmental Conservation has issued an air quality health advisory for Sunday due to smoke from ...

Canadian wildfires, along with high temperatures, are partly to blame for hazy skies and foul air. But passing storms may ...

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

As hundreds of wildfires burn across Canada, smoke is traveling south and potentially affecting Americans’ health. Here's why ...

Smoke will likely be an ongoing health hazard across North America for the next few months. Here's what to expect.

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Haze from Canadian wildfires is seen over Lake Michigan as a person runs along the shoreline Monday in Chicago. Wildfires ...

Smoke from wildfires burning in three Canadian provinces covered about a third of the U.S. on Wednesday, forecasters said, ...

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

Rounds of smoke from hundreds of Canadian wildfires, as well as dust blowing off Sub-Saharan Africa, will continue to envelop ...

Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest.