The　environmental　impact　of　the　polyethylene　terephthalate　(PET)　industry　has　received　widespread　attention.　We　constructed　a　pollutant　and　greenhouse　gases　(GHGs)　emission　accounting　model　for　material　industry　to　analyze　the　synergistic　mechanism　of　pollutant　and　GHGs　reduction　in　China＇s　PET　industry.　The　results　show　that　the　GHGs　of　this　industry　will　reach　221.14　MtCO2e　in　2060,　an　increase　of　13.7%　compared　with　that　in　2000.　Increasing　the　proportion　of　chemical　recycling　can　replace　the　consumption　of　primary　resources,　reducing　GHG　emissions　by　17.3%　in　2000–2060,　and　human　toxicity　potential　(HTP),　acidification　potential　(AP),　and　abiotic　depletion　potential　(ADP)　by　23.9%,　13.2%,　and　19.7%,　respectively.　Finally,　the　combined　scenario　(CS)　achieved　the　best　effect　of　synergizing　pollutant　and　GHGs　reduction,　with　the　CS　scenario　in　2020–2060　achieving　a　cumulative　GHGs　reduction　of　58.5%　and　cumulative　reductions　in　AP,　ADP,　and　HTP　of　53.0%,　61.1%,　and　71.4%　compared　to　the　baseline　scenario.　©　2025　Elsevier　B.V.