Global Warming

Ozone Killer

The slow healing of Earth’s ozone hole is being held back by the use of an unregulated chemical that continues to damage the UV protection layer 30 years after most ozone-destroying compounds were banned.

Scientists at the University of Lancaster say atmospheric levels of dichloromethane, a short-lived, ozone-depleting substance used in paint strippers, are on the rise. It isn’t covered under the 1987 Montreal Protocol.

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