Answer:

ozonehole

AnswerCrossword Clue
OZONEHOLEBad opening for environmentalists
OZONEHOLEHigh-level breakdown?
OZONEHOLEMontreal Protocol concern
OZONEHOLEProblem linked to CFC's
OZONEHOLEAntarctic environmental concern
OZONEHOLEOpening on an environmentalist's agenda?
OZONEHOLEAtmospheric problem
OZONEHOLESeasonal thinning in the atmosphere over Antarctica
OZONEHOLEOpening for an E.P.A. worker?