could be one of the 20 to 50 percent of all species that the Intergovernmental Panel on Climate Change estimates will be ticketed for extinction by the end of the century if we stay on business-as-usual fossil fuel use.
目前的物种中有百分之二十到五十都会在 本世纪末灭绝， 帝王蝶就可能是 其中之一， 如果我们仍像现在这样使用化石燃料。