These five ozone-depleting CFCs have been increasing in the atmosphere

Discarded fridges can be a source of CFCs. (Getty Images: Eye Ubiquitous)

A recent increase in a number of ozone-depleting chlorofluorocarbons (CFCs) poses a climate threat, scientists say.

Five ozone-depleting chlorofluorocarbons significantly increased in the Earth's atmosphere between 2010 and 2020, despite being banned in 2010.