Crossword clues for Environmental concern 4 lettersAnswerClueSMOGEnvironmental concernACID_____ snow (environmental concern)TIDEEnvironmental conservation concernCLEANAIREnvironmental concernRECYCLEBe environmentally concernedFREONAir-conditioning refrigerant causing environmental concernsGLOBALWARMINGEnvironmental concernCLIMATECHANGEEnvironmental concern ... and what's happening in 17-, 23-, 45- and 53-Across?OZONEHOLEPolar environmental concernECOCONSCIOUSEnvironmentally concernedECOSYSTEMEnvironmental concernECOEnvironmentally concernedOZONEHOLEAntarctic environmental concernEROSIONEnvironmental concernPOLARICECAPDiminishing environmental concernARALSEARussian body that's a subject of environmental concernUSESingle-___ plastics (environmental concern)HAZARDOUSWASTEEnvironmental concernACIDRAINEnvironmental concernAQIEnvironmental datum of concern to asthmatics, for shortRAINFORESTConcern of some environmental activistsHAIRQUALITYConcern of an environmental stylist?