China probably has more shale-gas than the USA, but has been slow to develop it. Cheap shale gas in the US has cut US coal pollution in half. Shale gas developm

China probably has more shale-gas than the USA, but has been slow to develop it. Cheap shale gas in the US has cut US coal pollution in half. Shale gas development is extremely expensive. This one area where China's hybrid state-private enterprise system is not as nimble as the United States.