Coal Fires

Although I am familiar with the concept of coal mine coal mine always, the common event that I was not accustomed to before such a course is the concept of coal mine fire, which is a big economic and environmental problem. Perhaps the most notorious example of US coal mine fires is the central area of ​​the anthracite area in eastern Pennsylvania. On an important day in 1962, Centralia, as with other coal cities, quickly spread to other parts of the mine as a mountain of garbage in the mountains.

Coal fires occur in abandoned coal mines and mountains of coal veins. Internationally, thousands of underground coal fires are now occurring. The world's coal fired emissions are estimated to contain 40 tons of mercury annually in the atmosphere and 3% worldwide carbon dioxide emissions annually. Coal burning waste is the waste stream following solid waste in the second largest city in the country. It is disposed of in a "surface reservoir" lined with landfill or compressed clay, plastic sheet, or both. Since rainwater filters toxic ashes every year, toxic metals leach into the local environment.

Although I am familiar with the concept of coal mine coal mine always, the common event that I was not accustomed to before such a course is the concept of coal mine fire, which is a big economic and environmental problem. Perhaps the most notorious example of US coal mine fires is the central area of ​​the anthracite area in eastern Pennsylvania. - Coal is a product of decay of plants over 350 million years and is an integral part of US energy production. Coal supplies 56.9% of the power generation in the United States. As the various states have different types of coal, the United States is still ranked second only to Russia with estimated world coal reserves. Coal was the most important fuel from 1885 to 1950. Half tons of coal produces as much energy as 2 tons of wood, and half the cost