Lake Calumet has changed shape and purpose many times over the years. Geoffrey Baer takes a look at its past and future in this encore edition of Ask Geoffrey.

A collection of photographs by Maria Varela at the National Museum of Mexican Art portrays the evolution of social movements in the U.S.  

Watch the March 20, 2017 full episode of "Chicago Tonight."

City Council is expected to vote March 29 on an amendment to the city’s noise ordinance that would restrict some street performers from major stretches of two downtown streets.

Looking at the impact of a proposed funding cut to the program that aims to keep invasive species out of the Great Lakes.

Wildlife agencies and fishermen in Illinois are using a Chinese technique to catch Asian carp, an invasive fish species threatening the Great Lakes ecosystem.

Cuts to the EPA’s budget would affect a disproportionate number of minority and low-income residents in Chicago, experts say. 

A new WTTW web series peeks into pockets of nature in cities across the country.

A new program aims to get all arrestees a defense attorney while in police custody.

One of Steven Avery’s defense attorneys from Netflix’s “Making a Murderer” discusses his new book “Illusion of Justice.”

Casting himself as a progressive alternative to affluent candidates, state Sen. Daniel Biss has entered the race for Illinois governor.

Chicago Public Schools is seeking to prevent a proposed teacher strike later this spring, claiming the move would be illegal under state law.

Chicago’s top cop Eddie Johnson makes his case to Attorney General Jeff Sessions for federal help with gangs and guns. That story and more with Joel Weisman and guests.

Watch the March 16, 2017 full episode of "Chicago Tonight."

President Trump is out with what he's calling a "budget blueprint to make America great again." What would it mean for Illinois?