The Coal Question

The Coal Question is an 1865 book by the English economist William Stanley Jevons, subtitled "An Inquiry Concerning the Progress of the Nation, and the Probable Exhaustion of Our Coal Mines." It examines Britain's dependence on coal as the basis of its industrial economy and argues that this dependence is finite and unstable. The book makes two arguments that have outlived its specific predictions. The first is resource-economic: Britain's coal output had been doubling roughly every twenty years, and Jevons argued such exponential growth could not continue against a fixed geological stock. He worried this would erode the country's industrial leadership. Britain did not in fact run out of coal, partly because oil and gas substituted for it, but the framing of geometric demand against finite supply prefigured later resource-limits arguments such as peak oil. The second argument, in the chapter "Of the Economy of Fuel," gave rise to the Jevons Paradox. Jevons observed that James Watt's efficient steam engine had expanded — not reduced — total coal consumption, because lower effective prices unlocked new applications. He wrote that it was "a confusion of ideas to suppose that the economical use of fuel is equivalent to diminished consumption. The very contrary is the truth." The Coal Question is widely regarded as one of the founding texts of energy economics and ecological economics. It established Jevons's reputation, brought him to the attention of figures like John Stuart Mill and William Gladstone, and continues to be cited in modern debates over efficiency, sustainability, and AI compute growth.