Rise in Ozone-Destroying Chemical Despite Ban Puzzles Scientists
Wednesday, 16 May 2018 () An ozone-destroying chemical that has been banned for 20 years is on the rise. Scientists say there's more of it — not less — going into the atmosphere and they don't know where it is coming from.
CFC-11 is an ozone-depleting chemical that's been under an international ban since 2010. But there's been a surprising increase of the chemical in the ozone by 25 percent since 2012. Almost no CFC-11.. Source: Wochit -