Ozone layer: Banned CFCs traced to China say scientists : salma nouri : 2019-05-23T07:01:48Z jeudi, 23 mai 2019 - 07:01 AM Atmospheric observations pinpoint eastern China as the source of a rise in ozone-destroying chemicals. from BBC News - World https://bbc.in/2wkxxLL Facebook Twitter Google Plus BBC News - World Derniers articles