The first report from interim Inspector General William Marback disclosed that Mayor Lori Lightfoot’s administration declined to fire an employee of the Chicago Department of Public Health or punish two other employees of the Department of Buildings responsible for approving and overseeing the implosion of the smokestack.

What if our cities could be more like forests? That’s the question at the heart of a new building prototype developed by architecture and engineering firm Skidmore, Owings & Merrill.

A 20-year extension of the dump, operated by the Army Corps of Engineers to hold toxic sludge dredged from Lake Michigan, is still under review. The dump was supposed to be retired in 2022 and turned over to the Chicago Park District for redevelopment.

The U.S. District Court settlement modifies a previous consent decree that required BP Products North America Inc. to limit releases from the sprawling facility on the southwestern shore of Lake Michigan.

The U.S. needs a national strategy to deal with its plastic waste problem, which the country produces at a greater rate than the entire European Union combined, according to a new report. Interventions can’t come soon enough for wildlife.

Three mayors in the past 15 years have all promised to combat the effects of global climate change. But some critics and scientists, along with a new data analysis by the DePaul University Center for Journalism Integrity & Excellence, reveal their efforts have fallen short. 

The annual Conference of the Parties, just held for the 26th time, is all about getting countries to gradually ratchet up their measures to defuse global warming.

Scientists are warning of a looming climate catastrophe if countries continue to burn fossil fuels. The effort to invest in a sustainable future.

The final report from former Inspector General Joseph Ferguson did not detail why he concluded that the three employees should be disciplined, or whether city leaders would follow his recommendations.

The Chicago Department of Water Management is calling on the EPA to make protection of Lake Michigan from industrial pollution a priority after U.S. Steel’s Midwest Plant experienced two leaks in two weeks into a waterway that feeds into the region’s source of drinking water.

For the second time in two weeks, Indiana Dunes National Park has had to close its beaches due to an unknown substance leaking into the water along its Portage shoreline. 

Plans are underway to keep organic waste out of Chicago's landfills, officials said.

The Environmental Protection Agency confirmed the “reddish-orange discharge” that poured into Lake Michigan on Sunday from a steel plant in Portage, Indiana, was caused by high levels of iron, and says there’s no indication of health risks for people who may come into direct contact with the water.

U.S. Steel is reporting that a “rusty colored” discharge that poured into Lake Michigan on Sunday from its plant in Portage, Indiana, was due to elevated iron levels.

Officials from the Indiana Department of Environmental Management are investigating a “rusty colored liquid” discharged from the U.S. Steel plant in Portage, spotted Sunday evening in the Burns Waterway.

Under the new law, restaurants will only provide single-use plastic utensils by request. Supporters called the ordinance an important first step toward waste reduction but opponents said it will do little to stem the plastic tsunami.