Mayor Rahm Emanuel announced Sunday a commitment to transition the city’s municipal buildings and operations to 100 percent clean and renewable energy by 2025.

In the early 1960s, bald eagles were nearly extinct in the lower 48 states. But government protections and conservation measures have had a huge impact on their numbers. “I think it’s an incredible success story,” said biologist Chris Anchor.

A new treatment for a deadly form of brain cancer is seeing dramatic study results. “When I first started, less than 10 percent of patients with glioblastoma were alive at five years. Now we’re at 12 to 15 percent,” said Roger Stupp, a neuro-oncologist at Northwestern University. 

After unknowingly hiring a man convicted of armed robbery, battery and other felonies and misdemeanors, the Chicago Park District is changing its policy on background checks.

A recent wave of videos on social media show Immigration and Custom Enforcement agents arriving at Chicago residences in unmarked cars, knocking on doors while donning vests and jackets that say “police.”

In a sentencing memo filed Friday, Barbara Byrd-Bennett’s attorneys admit she “harbored a very real and greedy sense of entitlement” that she was earning something she deserved by steering millions of dollars in CPS contracts to her former employer.

Noble teachers announced Friday they have filed charges with the National Labor Relations Board, citing administration's “use of surveillance” to interfere with their rights granted by the National Labor Relations Act.

J.B. Pritzker launches his bid for Illinois governor. The U.S. Senate uses the “nuclear option” to confirm Supreme Court nominee Neil Gorsuch. And baseball season gets underway. These stories and more with Paris Schutz and guests. 

Watch the April 6, 2017 full episode of "Chicago Tonight."

Some major policy decisions for the Trump administration as global events heat up.

She made her Broadway debut in Stephen Sondheim’s “Merrily We Roll Along” in 1981. Liz Callaway joins us in conversation and performance.

Add another name to the field of Democratic candidates for governor – one that has been long anticipated.

Viewers wrote in with their thoughts on teaching cursive in schools. 

ReptileFest is back! We welcome some scaly, slinky and slithery friends to our set. 

A big show is brewing under the big top, with a cast and crew of more than 200 – plus 65 horses. We go behind the scenes of “Odysseo.”