It crushes coal, making it more combustible and easier to handle as a fuel.
Burning of coal, a fossil fuel is one of the principal causes of climate change and global warming. "Clean coal" or "Green coal" is a theory that we can capture all the pollutants including sulphur...
electricity , it needs coal to be made and to keep being made
yes
It is transported by train or truck.
First plants, then dead plant material, and finally lignite.