The former chemistry teacher who went on to battle former Mayor Rahm Emanuel throughout her tenure as the head of the Chicago Teachers Union, and nearly ran for mayor herself, has died. She was 67 years old.

Young people have had a lot to deal with over the past year, from remote learning to finding work. But there are also mental health challenges, and some doctors are showing an increase in the number of young people experiencing stress, depression and anxiety.

Across the United States and Canada, pollen season is starting 20 days earlier and pollen loads are 21% higher since 1990 and a huge chunk of that is because of global warming, a new study found in Monday’s journal the Proceedings of the National Academies of Sciences.

In a new status report, the Chicago Police Department said it “doubled down on its efforts to accelerate compliance” during its latest reporting period after missing 70% of its deadlines in the previous period.

Chicago is home to more Claude Monet paintings than any city other than Paris. That’s because the works of the famous French impressionist made a strong impression on local collectors. We explore the show “Monet and Chicago.” 

Lawyers for Donald Trump on Monday blasted the impeachment case against him as an act of “political theater” and accused House Democrats on the eve of the former president’s trial of exploiting the chaos and trauma of last month’s Capitol riot for their party’s gain.

After six years at the helm of the city department responsible for caring for Chicago’s most vulnerable residents, Lisa Morrison Butler announced her resignation. In a letter to aldermen, she said her last day would be Feb. 26.

Illinois’ ban on most evictions will enter its 12th month as the second wave of the pandemic eases and the vaccination effort gains steam.

The Chicago area saw dangerously cold weather over the weekend, and the week ahead doesn’t appear to offer much relief. But it takes more than a cold snap to bring the city to a standstill.

The sight of fans, many without masks, celebrating the Super Bowl in the streets, in sports bars and at game-watching parties has sparked worries of new outbreaks.

Could passengers on domestic flights soon be tested for COVID-19 before takeoff? Crain’s Chicago Business editor Ann Dwyer has details on that story and more business news.

An ancient sand ridge in the Calumet region became a well-worn route used by enslaved people seeking freedom.

Early detection of the coronavirus is crucial for reducing its spread, even as vaccinations ramp up. Now, researchers have created a DIY smell and taste challenge – and all you need is your morning cup of joe.

Watch the Feb. 8, 2021 full episode of “Chicago Tonight.”

How long immunity lasts from natural infection is one of the big questions in the pandemic. Scientists still think reinfections are fairly rare and usually less serious than initial ones, but recent developments around the world have raised concerns.