Mysterious rise in banned ozone-destroying chemical shocks scientists

Oops! Holy Ozone!

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CFCs have been outlawed for years but researchers have detected new production somewhere in east Asia

A sharp and mysterious rise in emissions of a key ozone-destroying chemical has been detected by scientists, despite its production being banned around the world.

Unless the culprit is found and stopped, the recovery of the ozone layer, which protects life on Earth from damaging UV radiation, could be delayed by a decade. The source of the new emissions has been tracked to east Asia, but finding a more precise location requires further investigation.

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