Wildfire Smoke from Canada Threatens Air Quality in U.S.

Smoke from record-breaking wildfires in Canada has caused air quality to deteriorate to Code Red levels in northern Minnesota, with the acrid haze coming from fires in both Canada's east and west. The smoke is expected to drift south and southwest across the Upper Midwest, with more locations in Minnesota, including the Minneapolis metro area, likely to experience unhealthy air quality. Canada is racing towards its largest fire season in the modern record, with over 5 million hectares involved, the most on record by far.