To be sure, intensity of use has fallen for some commodities, like gold and nuclear energy; but for others, such as aluminum and coal, it has risen since 2000 or, as is the case for copper and oil, declines have slowed markedly or stalled at high levels. As the composition of China’s economy continues to shift from investment to consumption, demand for commodity-intensive consumer durables – cars, mobile phones, indoor plumbing, computers, and televisions – will rise.