A banned CFC is destroying the ozone and nobody can find its source

A banned CFC is destroying the ozone and nobody can find its source
Scientists spent years campaigning for a ban on the ozone-damaging chemical CFC-11, but 30 years after it was phased out in the 1987 Montreal Protocol, someone somewhere is breaking the rules. According to the National Oceanic and Atmospheric Adminis…
Source: Engadget

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