KnowraOzone holeLinked fromLinked fromThe 12 pages that link to Ozone hole, each with the reason it gives.All 12Broader topic 7Related 5HydrofluorocarbonRelated: Concern over ozone loss drove the transition away from CFC refrigerants.HydrochlorofluorocarbonRelated: The discovery heightened the urgency of controlling ozone-depleting chemicals, including HCFCs.Ozone-depleting substanceRelated: Its discovery provided striking evidence of the damage caused by ozone-depleting chemicals.Polar vortexRelated: The isolated, cold Antarctic vortex helps create conditions for rapid springtime ozone loss.1,1,1-TrichloroethaneRelated: Scientific evidence of ozone loss helped build support for controlling ozone-depleting chemicals.