Wildfires are still raging in Canada, where there have been dozens of active fires, and over 33,000 people have been forced ...

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

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

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

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

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

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.

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

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