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

As wildfires continue to rage in western Canada, the Environmental Protection Agency issued its first alert of the year for ...

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 ...

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

Smoke from Canadian wildfires triggered an air quality alert Thursday across northeast Illinois, meaning conditions are ...

Toxic air spreads hundreds or even thousands of miles from where wildfires burn. Last week, Chicago felt the sting—and ...

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

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

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 ...