WBEZ's Tessa Weinberg talks about what's next in the Chicago mayor's race now that Lori Lightfoot has become the first mayor in 40 years to lose re-election after one term, in part because of high crime rates. And, STAT's Olivia Goldhill explains how the idea for a common test for depression actually came from a marketer for the antidepressant Zoloft. Then, scorching sugar fields is an expedient method of farming. But it is messy and dirty. Tons of ash fall from the sky. Area residents in south Florida call it black snow, and it is making some of them sick. Journalist Sandy Tolan tells us more.