New: ozonedepletionAll contenthive-129948hive-196917krhive-180932zzansteemhive-150122hive-185836hive-183959photographyhive-188619hive-144064hive-183397hive-166405hive-101145uncommonlabhive-103599hive-184714hive-145157hive-139150hive-165987hive-150943hive-109690hive-193637hive-139765TrendingNewHotLikersrahulbairwa (53)in ozonedepletion • 7 years agoDo we still have to worry about the hole in the ozone layer?In 1987, a group of international scientists drew up the Montreal Protocol on Substances that Deplete the Ozone Layer , which came into force shortly afterwards in 197 countries. Chlorofluorocarbons…