Explore the quantum shift in Chicago’s economy as it transforms the former U.S. Steel South Works site into a sustainable future.

CHICAGO The Illinois Environmental Protection Agency (Illinois EPA) and the Illinois Department of Public Health (IDPH) are ...

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

Hazy skies from wildfire smoke will linger through the weekend in Chicago, with mild temperatures and an air pollution alert ...

Chicago is known for so many incredible innovations: the birthplace of house music, our awe-inspiring skyline and modern ...

Temps tonight look to fall into the 60s across the Chicagoland area with scattered showers and thunderstorms possible until ...

An Air Quality Alert was still in effect for a third straight day, but for a smaller portion of the Chicago area.

The settlement, which still must be approved by a judge, includes $1.5 million in civil penalties and $3 million for restoring the Chicago River habitat for fish and aquatic life.

Chicago officially had the worst air quality in the world for a few hours Thursday. As a haze of Canadian wildfire smoke ...