Other crossword clues for answer "OZONEHOLE"OZONEHOLEHigh-level opening?Problem associated with propellantsBad opening for environmentalistsHigh-level breakdown?Montreal Protocol concernProblem linked to CFC'sAntarctic environmental concernOpening on an environmentalist's agenda?Atmospheric problemOpening for an E.P.A. worker?Seasonal thinning in the atmosphere over AntarcticaClimate issue addressed in the Montreal Protocol