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January 03, 2007
Spot the Malthusian fallacy
In his 2006 book Plan B 2.0: Rescuing a Planet Under Stress and a Civilization in Trouble, Lester Brown writes: If paper use per person in China in 2031 reaches the current U.S. level, this translates into 305 million tons of paper—double existing world production of 161 million tons. There go the world’s forests. Yes indeed, the forests would soon be gone because, as we all know, once a tree is harvested for paper, that’s the end of that. The land is forevermore bare. Oh wait, no it isn’t: it’s possible to plant new trees. As the price of paper rises, paper companies would find it profitable to grow more paper-producing trees than they grow today. And at a high enough price of paper, it would pay to recycle more paper (just as it already pays to recycle aluminum cans). Brown makes similar projections for grain and oil, and concludes: The inevitable conclusion to be drawn from these projections is that there are not enough resources for China to reach U.S. consumption levels. Quite right. And in 1907 it was equally impossible for the US to ever reach its current 2007 consumption levels. Posted by Lawrence H. White at 01:42 PM in Economics
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The statesman who should attempt to direct private people in what manner they ought to employ their capitals would not only load himself with a most unnecessary attention, but assume an authority which could safely be trusted, not only to no single person, but to no council or senate whatever, and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it. -Adam Smith
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