Surge in ozone-depleting CFCs appears to have been reversed, ozone layer recovery back on track
Posted
WedWednesday 10
updated
WedWednesday 10
The hole in the ozone layer is greatest over Antarctica.
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The global increase in ozone-depleting chlorofluorocarbon-11 (CFC-11) emissions, which was first detected in 2013 and continued to rise in the following years, appears to have been halted.
Key points:
A mystery surge in CFC-11 was detected between 2014-17
The source of 60 per cent was traced to China, but 40 per cent is still unknown
CFC emissions have returned to normal and researchers believe restoration of the ozone layer is still on track