Coal used for this process is called steaming coal. In 2008 77% of the electricity generated in Australia was produced by coal fired power stations (includes black and brown coals). Some types of black coal are suitable for coke-making.
These symptoms may occur in the back, leg and down to the foot. The most common nerve irritation originating from the lumbar spine is Sciatica. This is an irritation of the sciatic nerve, which can produce pain, numbness, and weakness down the leg along the areas innervated by the sciatic nerve.
How to Heal Nerve Damage. Pain, tingling, burning sensation, numbness and weakness in muscles are some of the symptoms of nerve damage. Read this article on how to heal nerve damage to get rid of the dangerous consequences of this condition. All the functions of human body are controlled by the nervous system.