Part 1 of Essay
Concern with the environment is being voiced by people throughout the world. Today, it is not unusual to read about environmental problems. One problem that is important to all of us is the depletion of the ozone layer. One question being asked is, does the depletion of the ozone cause a danger to our health? Many expe ....

Part 2 of Essay
.... sparks from motors also convert oxygen to ozone ( Stoker 1). The question about the destruction of the ozone layer revolves around whether human-made CFCs (chloroflurocarbons) used in air- conditioners and refrigerators are breaking it down. This is the ozone thinning theory: "CFCs release chlorine into the stratosphere... leading to ozone destruction and exposing the planet to harmful ultraviolet rays." Critics who discount the thinning theory still say that chlorine comes from natural sources like volcanic e ....