Efforts to replace ozone-depleting CFCs have led to successive generations of refrigerants that may be contributing to the global buildup of toxic trifluoroacetic acid, raising new environmental and ...

The ozone hole over Antarctica is the seventh smallest it’s been since the early 1990s. Recovery began with the Montreal Protocol, which ended the production of all chlorofluorocarbons (CFCs) in 1987.

Chemicals brought in to help protect the ozone layer have inadvertently spread huge quantities of toxic 'forever chemicals' around the globe, a new study reveals. Back in the 1980s, experts discovered ...