Photo Details

Photo detail

September 21, 2013

A worker levels the coal on a freight train July 31in Taiyuan in northern China's Shanxi province. Coal has been the dominant fuel for power generation for a century because it is cheap, plentiful, and easy to ship and store. But it emits a host of pollution-forming gases and soot particles, and double the greenhouse gas emissions of its closest fossil fuel competitor, natural gas.