You may be asking yourself, where does coal come from? Coal is the remains of dead plants and animals becoming fossilized and over millions of years they decompose and through great pressure and high temperature these fossils change to coal.
Coal makes up approximately 28% of the worlds total energy needs, and is consumed at an alarming rate with nearly 1 million tons of black coal burnt in Australia in one day, and is worth about $5 billion annually just to Australia. But coal is unrenewable an it is predicted the worlds coal reserves would be gone within the next 40-50 years.
Coal is one of the most important discoveries know to man, as I mentioned before. Coal basically started the industrial revolution, in which created the whole way of life as we know it now. Light in our homes, refrigerators to keep our food fresh and ovens to cook our food are all came indirectly from the discovery of coal.