Researchers mapped U.S. public parks with toxic waste dumps. What they found was frightening

Though the thought of toxic waste may conjure images of comic book monsters and neon green slime, the threat of hazardous pollution is unfortunately very real—and a new report shows it’s closer than you might think. Researchers at the University of Michigan compared the locations of America’s public parks with sites of toxic waste and chemical dumps. Their findings cross-referenced a dataset of more than 150,000 public parks (including everything from massive national and state parks to local...