The Beijing government recently announced a 1 trillion yuan ($163 billion) plan to clean up its deadly and expensive air pollution problem. Its success hinges mainly on sharp cuts in regional coal consumption. + But China still has to keep the lights on somehow. Its solution? Synthetic natural gas (SNG) converted from coal. Beijing will be one of the first cities powered by SNG. That’s great for the capital. But as we explored last month, SNG creates toxic fumes and 82% more greenhouse emissions than coal-burning.