Watch the May 1, 2017 full episode of "Chicago Tonight."

Robert Nelson’s at-times tumultuous tenure as Chicago’s “harbor boss” is chronicled in his new book “Dirty Waters: Confessions of Chicago’s Last Harbor Boss.”

For migrating birds, Chicago can be a dangerous place. But scientists, architects and volunteers are now teaming up to make the city a leader in bird-friendly design. The story is told in WTTW's online series “Urban Nature.”

The Chicago Park District and Chicago Public Schools are teaming up this summer to help ensure safe travel for thousands of youth participating in recreational programs and sports leagues.

Local author Jennifer Keishin Armstrong on the cultural impact of the TV show “Seinfeld.”

Illinois Attorney General Lisa Madigan joined a group of 16 attorneys general last week in urging Congress to reject the rollback of standards that combat pollution and protect air quality.

Viewers respond to Gov. Bruce Rauner’s statements on the state of Illinois’ finances.

Cook County Department of Public Health officials are reminding residents that bats become active this time of year, which means the possibility of exposure to rabies is increasing.

After serving tours in Afghanistan, attending Harvard Business School and launching a global business, Emily Miller and Kimberly Jung face another, daunting challenge: pitching their company Rumi Spice to potential investors on reality TV.

Food allergies affect 15 million Americans and cause approximately 30,000 emergency department visits each year. Can the restaurant industry help bring these figures down?

A Cook County Judge has dealt a financial setback to Chicago Public Schools – stating that the school district’s complaint is “not the vehicle to address [the state’s] inequity” in education funding.

Chicago Public Schools will stay open until June 22, the end of the regular school year, instead of closing early on June 1. “You will be in school until the end of the school year. We will be here working to find the resources,” said Mayor Rahm Emanuel.

Former Chicago Public Schools CEO is sentenced to four-and-a-half years in prison. Gov. Bruce Rauner and House Speaker Michael Madigan finally meet. And the Bears make a surprise draft move. 

The disgraced former Chicago Public Schools CEO will spend 54 months in prison after a federal judge sentenced her Friday for the yearslong kickback scheme she ran while chief of the cash-strapped district.

Thousands of nursing home workers at 53 Chicago-area facilities have threatened to go on strike beginning next week, according to an announcement from SEIU Healthcare Illinois.