Hazy skies from fires are reminiscent of 2023 when Chicago was the second-most-polluted major city in the country.

Another large fire exacerbated by climate change is threatening the health of Chicagoans. Government officials issued an air ...

Wildfires are still raging in Canada, where there have been dozens of active fires, and over 33,000 people have been forced ...

Chicago’s air took a hit overnight as smoke from more than 100 Canadian wildfires drifted into the city, pushing the air ...

Smoke coming in from Canadian wildfires settled over Chicago, causing unhealthy air quality conditions for at-risk groups.

An air quality alert is in effect until midnight Thursday for the Chicago area as Canadian wildfires continue.

Smoke from wildfires in Canada moved into the Chicago area Friday evening. Doctors are warning people about the potential ...

Illinois and Wisconsin will begin to see -- and smell -- the wildfire smoke coming from the north as early as Friday ...

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

An air quality alert remains in effect for the entire Chicago area, with another "Air Pollution Action Day" alert declared as ...

Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange ...

Chicagoland woke up to code red unhealthy air quality Thursday as wildfire smoke from Canada ... According to the air quality tracking site IQAir, Chicago’s Air Quality Index (AQI) reading ...