at once production o ex taggered gait and confusedfaculties t mark tly poisoned. Also almost at once, tionembarked on a policy of calm but unyielding denial t  rial cry,Promet one plant developed irreversible delusions, aspokesman blandly informed reporters: “t insane because too oget least fifteen ion ofleaded gasoline, and untold numbers of oten violently so; tnumbers are unknoo  times,  notably in 1924 ion y-five more urned into permanent staggering  a single ill-ventilated facility.

    As rumors circulated about t, et inventor,to ration for reporters to allay tted a tment to safety, etraet to y seconds, claiming all t  t , Midgley kneoo   near tuff if .

    Buoyed by turned to anotecors in ten appallingly risky because t sometimes leaked. One leak from a refrigerator at a al inCleveland, O out to create a gast able, nonflammable, noncorrosive, and safe to breatinct for ttable t  uncanny, ed chlorofluorocarbons, or CFCs.

    Seldom rial product been more sly or unfortunately embraced. CFCs into production in tions in everytioners to deodorant sprays before it iced, ury later, t tratosp a good thing.

    Ozone is a form of oxygen in ead oft is a bit of a cy in t at ground level it is a pollutant, osp is beneficial, since it soaks up dangerous ultraviolet radiation. Beneficial ozoneis not terribly abundant,  ributed evenly t tratosp one eig is urbed,and  take long to become critical.

    C very abundant—titute only about one part perbillion of tmosp travagant