( Landfills take up valuable space and emit methane, a potent greenhouse gas; and although incinerators are not as polluting as they once were, they still produce noxious emissions, so people dislike having them around.

• （垃圾填埋会占据有用的空间并会释放出一种称为甲烷且影响力极大的温室气体；而尽管焚化炉并不如以往那样污染过大，但是焚化垃圾还是会产排放出有害气体，所以人们并不赞同焚化垃圾。