Other sources of energy, like renewable and nuclear power and natural gas, will be necessary for China all the same if the country hopes to control its carbon dioxide emissions. Clean coal "needs inevitably to be part of the solution in China, but it’s not the only solution. Far from it." said Gallagher, who just published a book on energy technology in China. Different kinds of power can serve different purposes, and it's impossible to predict which technologies will develop most successfully. ...