就算是世界上的石油和天然气在不久的将来耗尽，煤却仍然有足够的储量。 固体的煤以相对较低的成本就可以被转化成供应汽车和其他用途的液体燃料。
Even if the world runs out of oil and gas in the coming years, coal will prove to be plentiful, and solid coal can be converted at relatively low cost to liquid fuels for automobiles and other uses.