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.
These include: 1  Memory loss. 2  Paralysis on the left-side of the body. Like in left-brain damage, the paralysis due to right-brain damage also can vary from patient to patient. 3  Problems in vision, especially vision problem on the left side. Mild vision problem may also occur in people with left-brain damage.