Hamburger ntim cov ntaub ntawv tau dhau los ua qhov hloov pauv, hloov pauv los ntawm kev siv thaum ntxov ntawm polystyrene ua npuas ncauj mus rau cov khoom siv niaj hnub no ntawm eco-cov ntaub ntawv tus phooj ywg, xws li ntawv.
Keeb kwm, ceev ceev- cov khoom noj xws li McDonald's siv polystyrene ua npuas ncauj los tsim cov thawv ntim hamburger-ib qho kev coj ua piv txwv los ntawm lawv cov ntim li xyoo 1996.
Tsav los ntawm kev paub txog ib puag ncig thiab kev nce qib hauv cov khoom siv thev naus laus zis, cov khoom tseem ceeb tshaj plaws rau ntim hamburger tau maj mam hloov mus rau ntau dua eco- lwm txoj hauv kev nyiam, xws li ntawv. Cov ntawv niaj hnub-raws li cov ntaub ntawv muaj xws li dawb cardstock, coated ntawv, thiab corrugated cardboard; Tshwj xeeb tshaj yog, McDonald's tau tshaj tawm cov phiaj xwm hloov pauv tag nrho rau cov khoom siv rov ua dua lossis tsis yog- ntoo- cov khoom ntim raws li xyoo 2020.
