Reportage: China Coal Boom
China's booming economy is creating an unprecedented demand for energy. China is poor in oil and natural gas, however it is the world's largest producer of coal, the cheapest and dirtiest form of energy. Seven of the world's ten most polluted cities are in China. China's coal powered economic machine is having serious consequences on the region's environment, its public health and is contributing to the worldwide problems of greenhouse gases and global warming.