Thomas Midgley Some have gone as far as saying that Midgley has had more impact on the atmosphere than any other individual in the course of history. He is responsible for the creation of leaded gasoline and Freon (the first CFC). He also worked closely with Charles Kettering, the man who created the first cruise missile. Indirectly, Midgley helped to form McDonalds. And it would seem that nature is not without a sense of humour, either [Look at the last paragraph].