Crossword clues for Greenhouse gas 5 lettersAnswerClueOZONETriatomic greenhouse gasOZONEGreenhouse gasWATERImportant greenhouse gasOZONEA greenhouse gasOZONEBlue gas in the greenhouse effectCARBONCOP*Enforcer of greenhouse gas restrictions?CARBONFOOTPRINTGreenhouse-gas emission measureMMLG-8's deadline for halving greenhouse gas emissionsDIOXIDECarbon ___ (greenhouse gas)CARBONOFFSETSGreenhouse gas mitigatorsCARBONOFFSETCompensating reduction of greenhouse gas emissionsEPAGreenhouse gas regulator, for shortMETHANEGreenhouse gas produced by cowsCARBONOFFSETPurported counterbalance for greenhouse-gas emissions . . . or a description of the wordplay in 18-, 27-, 39-, and 51-AcrossCOALGreenhouse gas culpritEMISSIONSGreenhouse gas concernsEPAGreenhouse Gas Reporting Program org.KYOTOPROTOCOLInternational greenhouse gas treatyEPAGreenhouse gas regulators of D.C.METHANEA greenhouse gasEPAFederal org. with a "personal greenhouse gas emissions calculator"COALBig greenhouse gas culpritEPAOrg. concerned with greenhouse gasEPAGreenhouse gas regulator: Abbr.