增加能源种类的必要性汽车热爱石油,并不是因为石油味道好,而是因为它便宜——“我们可以把煤变成油,但成本过高,代价昂贵,”美国伯克利加州大学物理学教授R·A·穆勒在《未来总统的物理课》中告诫那位未来的总统:地球上的煤还能坚持几个世纪,而石油已经快耗尽了,得想办 Necessity of Increasing Energy Category Cars love oil not because it tastes good but because it is cheaper- “We can turn it into oil, but it’s too costly and expensive,” University of California, Berkeley Physics Professor R.A.M. Muller warned the future president in “The President’s Physics Lesson,” that coal on Earth can last for centuries and that oil is almost exhausted and has to be reckoned with