Introduction
An estimate of 861 billion tons of coal deposits exist worldwide. According to the present rate of production, this amount can last for 112 yrs contrary to the oil and gas reserves that will last for fewer years approximately 45 to 54. Several countries in the world have coal reserves found in the biggest ones are China, Russia, USA and India. To prove recoverable reserves, engineers drill on the ground hence technically and economically extractable. In contemporary times, reaching peak coal is questionable due to fall in the ratio of reserves to production. The point when there is ...
