China's remarkable economic growth has been supported by a generally adequate and relatively low-cost supply of energy, creating the world's largest coal industry, its second-largest oil market, and an electic power business that is adding capacity at an unprecedented rate. However, in fueling that impressive economic growth, the energy sector has increasingly stressed the natural environment, placed heavy demands on domestic energy sources, and exposed the country to risks of dependence on foreign petroleum supplies. If energy requirements continue to double every decade, China will not be...