Canadian wildfire smoke is impacting air quality across a dozen northeastern and midwestern U.S. states. Air quality is expected to remain poor in the Northeast through Tuesday, with some improvement ...

Large wildfires in Canada continued to cause concerning air quality levels across parts of the United States and triggered multiple air quality alerts. Over 750 wildfires are burning throughout Canada ...

As of July 30, there were 59 active wildfires in Canada. Wildfires are a natural part of Canada's boreal forests, but are becoming more frequent and intense due to rising global temperatures.