Saving ozone layer has given humans a chance in climate crisis – study

CFC chemicals once used in refrigerators would have driven 2.5C of extra warming by 2100 if they had not been outlawed, researchers claim

The ozone-wrecking chemicals once commonly used in refrigerators would have driven 2.5C of extra global heating by the end of the century if they had not been banned, research has found.

Modelling by climate scientists found that the 1987 Montreal protocol curbing chlorofluorocarbons (CFCs) gave humans a fighting chance of limiting global heating to 1.5C as set out by the Paris agreement.