Satellites observed the largest ozone hole over Antarctica in 2006. Purple and blue represent areas of low ozone concentrations in the atmosphere; yellow and red are areas of higher concentrations.

A hazardous, ozone-depleting compound is still being used in China, even though it is banned worldwide by the Montreal Protocol, a new study finds. Eastern China has emitted significant amounts of ...

It's not supposed to be up there. Our atmosphere "contains an unexpectedly large amount of an ozone-depleting compound from an unknown source, decades after the compound was banned worldwide," reports ...

It’s been decades since the world realized the danger that chlorofluorocarbons (CFCs, formerly found in products like aerosol sprays, refrigerants, and solvents) posed to the Earth’s ozone layer. But ...

NASA research shows Earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound from an unknown source decades after the compound was banned worldwide. Carbon tetrachloride ...