The ozone layer is a layer in the Earth’s atmosphere has a high concentration of ozone (O₃). This layer is capable of absorbing from 97 to 99% of ultraviolet light released by the sun. UV light is biologically damaging to practically every living creature and organism on earth. A used-up, or depleted, ozone layer will cause ultraviolet radiation to easily reach the surface and planting dangerous effects to humans and other living creatures. The most common effect of continuous over-exposure to UV rays is cancer.

Back in the 1970’s, scientists found just cause to believe that chlorofluorocarbons, or CFCs, can contribute to the depletion of a large number of ozone molecules in the atmosphere. This discovery prompted a ban on non-essential aerosol cans in 1978. Companies searched for alternatives that had no harmful chemicals; and manufacturers stopped using CFCs as cooling agents for refrigerators and air conditioners. It was also during these times when a decrease in the concentration of ozone in Antarctica was discovered. This prompted the United Nations to come out with the Montreal Protocol of 1987 which states that by 2000, CFCs, halons, carbon tetrachloride, and methyl chloroform must be totally phased out. These actions were deemed necessary in ensuring that the ozone layer will be able to naturally heal itself.

The ozone layer’s hole has grown to a size similar to that of the North American Continent. Unless we begin to personally resolve to protect this important layer, we can never be fully confident that this problem will see its end. As in every problem, begin by changing yourself before looking for solutions outside. Change your attitude towards the environment and eventually, you’ll help keep the ozone layer alive.

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