Thomas Midgley Jr., a brilliant scientist working for Dayton, Ohio research companies in the 1920, invented two world-changing products. He discovered a lead additive could stop the destructing knocking noise prevalent in early auto engines. And he discovered a supergas that allowed average homes to safely have refrigerators and air conditioners. It wasn't until decades after Midgley's death that his revolutionary creations were destroying the planet, and the life upon it.\nLearn more about your ad choices. Visit megaphone.fm/adchoices