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Russ Wilson splashes water on his face from a fountain in New York, Wednesday, July 17, 2019. The heat wave that has been roasting much of the U.S. in recent days is just getting warmed up, with temperatures expected to soar to dangerous levels through the weekend. (AP Photo / Seth Wenig)

More than 100 local heat records are expected to fall Saturday, according to the National Weather Service. Most won’t be record-daily highs but record-high nighttime lows, and that lack of cooling can be dangerous, meteorologists say. 

(Roman Boed / Flickr)

Rising temperatures this week could lead to unhealthy air quality, particularly for people with respiratory conditions, as the heat combines with pollution from vehicle emissions and other sources, says the American Lung Association. 

(National Eye Institute / Flickr)

Scientists are often the foremost experts in their fields of study, but they aren’t necessarily well versed in the tricky science of collaboration.

In this April 5, 2019, file photo, containers depicting OxyContin prescription pill bottles lie on the ground in front of the Department of Health and Human Services’ headquarters in Washington as protesters demonstrate against the FDA’s opioid prescription drug approval practices. (AP Photo / Patrick Semansky, File)

The Centers for Disease Control and Prevention on Wednesday posted data showing nearly 68,000 drug overdose deaths were reported last year. Overdose deaths had been climbing each year since 1990, topping 70,000 in 2017.

Watch the July 18, 2019 full episode of “Chicago Tonight.”

Jury fails to reach unanimous decision in death-penalty case

A memorial stone engraved with Yingying Zhang’s name in both English and Chinese on the campus of the University of Illinois at Urbana-Champaign in June 2019, two years after her disappearance. (Photo by Mark Van Moer) Inset, top: Yingying Zhang (Courtesy University of Illinois Police Department). Bottom: Brendt Christensen (Courtesy Macon County Sheriff’s Department).

A 12-person jury deliberated for more than eight hours over the course of two days in Peoria’s federal courthouse, but failed to reach a unanimous decision in the death-penalty case. 

(terry priest / Flickr)

You’re not crazy. A local expert says people are seeing “substantially more flashing activity in the evening.” He tells us why there are so many of our favorite summertime bug – and why they light up.

The CTA, Metra and Pace might be running a little more efficiently going forward. After a 10-year drought, Chicago’s public transit system is set to receive billions in state capital funding.

(Pranav Bhatt / Flickr)

A new documentary from Chicago’s Kartemquin Films revisits an extreme weather event that killed more than 700 people – most of them poor and black. We discuss “Cooked: Survival by Zip Code” with producer Fenell Doremus.

The Sterigenics medical sterilization plant in west suburban Willowbrook. (WTTW News)

A medical sterilization plant in west suburban Willowbrook that’s been shuttered since February would reopen under a proposed court order, but not if residents who leave near the facility have their way.

Earlier this month, we took you on a tour of a distillery that produces Malort, the Chicago-born liquor that inspires devotion – and disgust. This week, we pour out a hefty helping of the stuff and stick it in the fryer.

This weekend is the 14th annual Pitchfork Music Festival – a homegrown stage for adventurous music from around the world, including Chicago. We visit a pair of young local artists as they prepare for their Pitchfork debut.

It is possible to keep your garden alive when the weather shifts from extreme rain to extreme heat? The Chicago Botanic Garden’s Eliza Fournier has some tips for combatting common problems.

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