Ozone-Layer Depletion

From the Paper:

"The ozone layer is the atmospheric layer that shields the earth from harmful ultraviolet radiation. There is disagreement concerning the extent to which chlorofluorocarbons (CFCs) and other chemicals in the atmosphere attack the ozone layer. Predictions of the resultant ozone depletion occurring globally in the next century have ranged from 3 percent to 18 percent as scientists work to understand this complex problem. Researchers examining the data in search of subtle annual changes in global ozone chemistry noticed that the South Pole's ozone concentration dropped more each October than in other months.? Initially researchers did not believe the data was significant.


Scientists now know that an ozone hole exists over the entire continent of Antarctica every October and has been getting larger each year. The question now is whether this effect is a ..."

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