它也无法对抗室内空气污染这一全世界最大的环境杀手。 造成室内空气污染的主要原因是每年造成380万人死亡的由点燃木材、纸板和粪便所引发的明火。
And it will not help fight the world’s biggest environmental killer: indoor air pollution, which is mostly caused by open fires fueled by wood, cardboard, and dung, and claims 3.8 million lives annually.