Cancer-causing PCB chemicals still being produced despite 40-year-old ban | Pollution
Industry may be producing more carcinogenic PCB chemicals today than at any point in history, even though their production was banned more than 40 years ago. PCBs (polychlorinated biphenyls) are man-made substances that were used as coolants and lubricants in electrical equipment until they were banned due to their association with health problems and because […]
High schoolers ID possible serial killer in 40-year-old cold case — reveal their findings on true crime podcast
To catch the murderer: Classroom edition! When Alex Campbell, a sociology and history teacher in Tennessee, decided to have his students solve a series of cold-case murders in the spring of 2018, he knew that when it came to identifying a suspect, I never dreamed of it. Little did he know that six years later […]