Once the engine of the Industrial Revolution and employer of nearly 1.2 million people, the fall of old king coal in the UK has been precipitous. Only five years ago, the fuel was generating more than 40% of the UK’s electricity, but new analysis by Imperial College London reveals coal supplied just 2% of power in the first half of 2017. More than 1,000 deep mines and nearly 100 surface ones operated until the early