Ozone hole

A significant hole in the Antarctic ozone layer was discovered, confirming the harmful effects of chlorofluorocarbons. This finding underscored the environmental damage caused by these chemicals.
 Joe Farman, Brian Gardiner and Jonathan Shanklin England 1985 Ozone hole

A significant hole in the Antarctic ozone layer was discovered, confirming the harmful effects of chlorofluorocarbons. This finding underscored the environmental damage caused by these chemicals.