The Rational Optimist_ How Prosperity Evolves - Matt Ridley [101]
Hay, water and wind are ways of drawing upon the sun’s energy: the sun powers plants, rain and the wind. Timber is a way of drawing on a store of the sun’s energy laid down in previous decades – on solar capital, as it were. Peat is an older store of the sunlight – solar capital laid down over millennia. And coal, whose high energy content enabled the British to overtake the Dutch, is still older sunlight, mostly captured around 300 million years before. The secret of the industrial revolution was shifting from current solar power to stored solar power. Not that human muscle power disappeared: slavery continued, in Russia, the Caribbean and America as well as many other places. But gradually, erratically, more and more of the goods people made were made with fossil energy.
Fossil fuels cannot explain the start of the industrial revolution. But they do explain why it did not end. Once fossil fuels joined in, economic growth truly took off, and became almost infinitely capable of bursting through the Malthusian ceiling and raising living standards. Only then did growth become, in a word, sustainable. This leads to a shocking irony. I am about to argue that economic growth only became sustainable when it began to rely on non-renewable, non-green, non-clean power. Every economic boom in history, from Uruk onwards, had ended in bust because renewable sources of energy ran out: timber, crop land, pasture, labour, water, peat. All self-replenishing, but far too slowly, and easily exhausted by a swelling populace. Coal not only did not run out, no matter how much was used: it actually became cheaper and more abundant as time went by, in marked contrast to charcoal, which always grew more expensive once its use expanded beyond a certain point, for the simple reason that people had to go further in search of timber. Had England never used coal, it could still have had an industrial miracle of sorts, because it could have (and did) use water power to drive the frames and looms that turned Lancashire into the cotton capital of the world. But water power, though renewable, is very much finite, and Britain’s industrial boom would have petered out as expansion became impossible, population pressure overtook income and wages fell, depressing demand.
This is not to imply that non-renewable resources are infinite – of course not. The Atlantic Ocean is not infinite, but that does not mean you have to worry about bumping into Newfoundland if you row a dinghy out of a harbour in Ireland. Some things are finite but vast; some things are infinitely renewable, but very limited. Non-renewable resources such as coal are sufficiently abundant to allow an expansion of both economic activity and population to the point where they can generate sustainable wealth for all the people of the planet without hitting a Malthusian ceiling, and can then hand the baton to some other form of energy. The blinding brightness of this realisation still amazes me: we can build a civilisation in which everybody lives the life of the Sun King, because everybody is served by (and serves) a thousand servants, each of whose service is amplified by extraordinary amounts of inanimate energy and each of whom is also living like the Sun King. I will deal in later chapters with the many objections that pessimistic environmentalists will raise, including the question of the atmosphere’s non-renewable capacity for absorbing carbon dioxide.
Wealthier yet and wealthier
Before I make the case that fossil fuels, by driving pistons and dynamos, made modern living standards possible, first, a digression about living standards. Did industrialisation really improve them? There are still people about, including it seems those who write the textbooks from which my children learn history, who follow Karl Marx in believing that the industrial revolution drove down most living standards, by cramming carefree and merrie yokels into satanic mills and polluted tenements,