In short, McAfee uses data on domestic material consumption (DMC), which tallies up the resources that a nation extracts and consumes each year. But this metric ignores a crucial piece of the puzzle. While it includes the imported goods a country consumes, it does not include the resources involved in extracting, producing, and transporting those goods. Because the United States and other rich countries have come to rely so heavily on production that happens in other countries, that side of resource use has been conveniently shifted off their books.
In other words, what looks like “green growth” is really just an artifact of globalization. Given how much the U.S. economy relies on globalization, McAfee’s data cannot be legitimately compared to U.S. GDP, and cannot be used to make claims about dematerialization. If McAfee wants to compare GDP to domestic resource consumption, then he needs to first subtract the share of US GDP that is derived from production that happens elsewhere. He does not. Nor is this possible to do.
Ecological economists have been aware of this problem for a long time. To correct for it, they use a more holistic metric called “raw material consumption,” or Material Footprint, which fully accounts for materials embodied in trade.
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