Decouple: All about coal

Mark Nelson, managing director of the Radiant Energy Group, joins us for his second masterclass, this time all about coal.

Much maligned by environmentalists and a significant source of air pollution and carbon emissions, coal still constitutes a whopping 25 percent of our primary energy consumption and over 30 percent of global electricity production.

What is it, where does it come from, how did it change the world, and why is it so difficult for even the most affluent and environmentally conscious countries to stop using it?