Conversation

If ever you feel like you're a terrible person, remember Thomas Midgely: the man who gave us *not only* leaded gasoline (using tetraethyl lead, which caused widespread lead poisoning in the fabs that produced the gas as well as devastating environmental effects that are still felt to this day), but *also* developed the first chlorofluorocarbons (CFCs), which he felt would be too inert to do any "real harm". (Tell that to the ozone layer.)