Kev tiv thaiv ib puag ncig ntawm cov khoom siv ib puag ncig yog xav txog ob yam. Ua ntej, lawv raug tsim nyob rau hauv ib puag ncig tus phooj ywg thaum lub sij hawm tsim khoom, thiab tsis txhob tsim ib puag ncig-polluting pov tseg los yog tsim tsawg tshaj li ib txwm cov ntaub ntawv. Qhov thib ob, nws tuaj yeem siv los hloov cov khoom uas ua rau muaj kev kub ntxhov ntau rau ib puag ncig, thiab yeej tsis muaj kuab paug lossis muaj kuab paug tsawg thaum siv.
