s 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 travagantly destructive. One pound ofCFCs can capture and annie seventy tmospime—about a century on average—wreaking he while.
t sponges. A single CFC molecule is about ten times moreefficient at exacerbating greens tself as a green, cimately prove to be just about t invention of tietury.
Midgley never kneructiveCFCs er becoming crippled ed a contraption involving a series of motorized pulleys t automaticallyraised or turned angled in tinto action and rangled.
If you erested in finding out ty of Co be. illard Libby ing radiocarbon dating,alloists to get an accurate reading of to do before. Up to time, t reliable dates back no furt Dynasty in Egypt from about 3000B.C. No one couldconfidently say, for instance, ed or at ime in tted the caves of Lascaux in France.
Libby’s idea in 1960. It ion t all living tope of carbon calledcarbon-14, a measurable rate tant t is, time it takes for o disappear1—of about 5,600 years,so by a goodfix on t—to a point. After eigive ca