CALGARY, Alberta (Reuters) -Wildfires burning in Canada's oil-producing province of Alberta have reduced the country's daily ...

Smoke spreading from wildfires in Canada was affecting air quality in multiple states on Tuesday.Parts of Minnesota, Iowa and ...

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 ...

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

Roughly 17,000 residents in the Canadian province of Manitoba have been evacuated because of nearly two dozen active ...

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

Wildfires burning in Canada's oil-producing province of Alberta have affected more than 344,000 barrels per day of oil sands ...

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.