There are a lot of changes happening at the moment in terms of impending and proposed emission legislation around our planet. Even China, previously often regarded as the location of the dirtiest power sector, now has among the tightest emission standards in the world and hosts the youngest and most efficient fleet of coal-fired power plants. Coal is still king in China and so the announcement that coal use in the most populated nation in the world is to be capped within the decade comes as a shock to most, inducing the almost knee-jerk response of "... how?". But . . .