Clean coal and dirty coal

Coal is dirty to touch and dirty when it is burnt. Can we ever have clean coal? We burn lots of it in order to generate electricity, and so does the United States, China and India as well as many other countries. It is the fossil fuel that emits the most carbon dioxide when it is burnt. It is a matter of some irony that the closing of Britain’s coal mines had the unintended consequence of making Britain pollute less, as electricity generation switched to natural gas. Continue reading