The Environmental Protection Agency recently installed a park bench equipped with air pollution sensors at a CPS elementary school. It's one of just seven such benches in the U.S.

The rise of far right wing groups in Europe and the United States: What's fueling their popularity?

The former Chicago City Council watchdog is back on the investigative beat. Faisal Khan, who served as City Council's  Legislative Inspector General, is heading up a new government watchdog organization.

Watch the June 1, 2016 full episode of "Chicago Tonight."

Republican Gov. Bruce Rauner blasts Democrats for failing to pass a budget before the end of the spring legislative session. Where does Illinois go from here?

A debate is brewing over the Chicago Police Department's use of an algorithm they say identifies people who are most likely to shoot someone or be shot themselves. We hear from all sides.

A bill to increase utility rates to bail out failing nuclear plants in Illinois failed Tuesday in Springfield. But will the plants now close? "Chicago Tonight" has exclusive new information.

An Elgin company hopes robots will be the future of the fast-food industry. Will online beer sales be the next frontier for e-commerce? Crain’s Chicago Business managing editor Ann Dwyer brings us these stories and more.

Two years ago, amateur photographer Josh Feeney spotted a nest of owls within a Cook County forest preserve. Since then, he's returned to the site to check on the rare species and recently found evidence of successful breeding.

Geoffrey Baer tracks down answers for three questions about Chicago's bygone streetcar heyday. 

High hopes in the search to reverse or prevent Alzheimer’s disease. We'll tell you about two important medical studies being conducted in Chicago.

Watch the May 31, 2016 full episode of "Chicago Tonight."

An annual study from the University of Illinois at Chicago finds that aldermen are increasingly voting independently from Mayor Rahm Emanuel on contested issues.

Health care experts have long warned that the effectiveness of antibiotics has been declining due to overprescription by doctors and also because of the use of antibiotics in raising livestock for human consumption.

It’s the final day of the spring session for the Illinois General Assembly in Springfield, and despite maneuvering on all sides to float a solution, the state still does not have a budget. But that doesn’t mean it’s over.