Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida.

Wildfires burning in Canada's oil-producing province of Alberta have reduced the country's daily crude production by about 7% ...

The pull of the foul air to Northern California was significant enough that the Bay Area Air District issued an air quality ...

Smoke spreading from wildfires in Canada​ was affecting air quality in multiple states, including Minnesota​ and Wisconsin.

Smoke from raging wildfires in Canada is worsening air quality in some U.S. states. But will Greater Cincinnati be affected?

A wildfire is seen Monday burning northeast of Summit Lake, British Columbia, Canada.

Smoke from wildfires in Canada is making it harder to breathe in Ohio and several other states. Here's how long it will last ...

The worst wildfires in decades are tearing through Saskatchewan, Canada, and at least two people have been killed in blazes ...

Smoke from wildfires in Canada have made their way to Arkansas causing an increased health risk, especially for people with ...

States across the border issued air advisories about particulate pollution that are expected to last for several days.

About 17,000 residents of Manitoba in central Canada have been evacuated because of nearly two dozen active wildfires.