Why you don't hear about the ozone layer anymore

In 1987 ozone levels above Antartica had dropped by fifty percent. Scientists convened to discover the cause and found it was being depleted due to a chemical called chloroflourinecarbons commonly found in aerosol cans. In order to tackle the problem, scientists and leaders created public conferences to inform the public. The conferences created public pressure on world leaders to act and eventually led to the "Montreal Protocol," which called for the phasing out of CFC's. By 1989 consumption of CFC's plummeted. The ozone started healing and by 2065 is expected to completely recover.

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