In 1865, the English economist William Stanley Jevons observed that technological improvements that increased the efficiency of coal-use led to the increased consumption of coal in a wide range of industries.
1865年，英国经济学家威廉·斯坦利·杰文斯（William Stanley Jevons）观察到，提高煤炭使用效率的技术改进导致广泛行业煤炭消费量增加。