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Coal is the official state mineral of Kentucky.
About: Jump in coal prices brings uncertainty
nice job cctv keep up the good work
china has smog problems, have they heard of the company ORMAT, they have the geothermal air steam turbine, pure clean energy, or put filters on the coal towers and build sky scraper air filters.
Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction.
Coal is primarily used as a solid fuel to produce electricity and heat through combustion. World coal consumption was about 7.25 billion tonnes in 2010
The price of coal increased from around $30.00 per short ton in 2000 to around $150.00 per short ton as of September 2008.
In early 2015, it was trading near $56/ton.