There is not just one particular cause for the ozone’s depletion; the accumulation of different pollutants into our ozone layer has all added up and equaled a worldwide problem. Man-made chemicals, fossil fuels, industrial wastes, and automobile exhaust all pose a threat to the earth’s ozone. Scientists were concerned when they discovered in the 1970s that chemicals called chlorofluorocarbons, or CFCs. These CFCs were used as solvents, refrigerants, aerosol propellants, and to blow foam plastics. For this reason, the use of CFCs in aerosols has been banned everywhere. Other chemicals, such as bromine halocarbons, as well as nitrous oxides from fertilizers, may also attack the ozone layer. Nitrogen oxides and methane are also compounds which adversely affect the stratosphere’s ozone. It is given off by cow’s dung, marshes, landfills, and garbage dumps.
What Can We Do? There are many ways individuals can slow the rate of ozone depletion, through careful product purchasing of appliances that do use ozone depleting substances. Immediately repair any leaks in your refrigerator and make sure all CFCs are recovered and properly recycled before any refrigerator is scrapped. Avoid buying all products that contain... [continues]
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