Ƙirƙirar wani nau'i mai rikitarwa na wannan jumla Burning coal yana daya daga cikin manyan masu gurbatawa a duniya.
Tabbas, mafi rikitarwa na jumla ita ce "Burning coal is one of the world's largest pollutants in fact it is the leading cause of global warming, ruwan sama mai laushi, smog, da kuma gubobi a cikin iska. "