能源匮乏对三十亿人 — — 也就是几乎一半的世界人口 — — 来说甚至更为严峻，他们在室内烧牲畜粪便，纸板和树枝来做饭和取暖。
Energy poverty is even more acute for the three billion people – almost half of the world’s population – who burn dung, cardboard, and twigs indoors to cook and keep warm.