More than 25,000 residents in three provinces have been evacuated as dozens of wildfires remained active Sunday and ...

L.A. suffered its largest quarterly construction-cost jump in a database that dates to 2013 and the first quarter’s biggest ...

Parts of the Upper Midwest were under air quality alerts on Tuesday. The New York City region is expected to be at risk on ...

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

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

Smoke from more than 100 wildfires blazing in Canada is expected to spread to impact air quality in more U.S. state.

Dust isn't the only threat out there, especially for those with respiratory problems. Smoke from Canadian wildfires is moving ...

The Minnesota Pollution Control Agency issued an air quality alert for much of state through Wednesday as smoke from ...

Michigan, Wisconsin and Minnesota are already seeing air quality deteriorate because of smoke from the fires in Manitoba and ...

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

Dozens of wildfires remained active Sunday and diminished air quality in parts of Canada and the U.S., according to officials ...