The use of coal presents a real dilemma to the power industry. According to statistics compiled by the Energy Information Administration, it generates almost half of the electricity in the U.S., yet it is globally recognized as a primary contributor to global warming, the cause for acid rain and a general pollutant. Thus, elimination of coal as a primary source of fuel, though encouraged by many environmentalists, is not a practical option. The development of “clean coal technology” is. A very basic tutorial on how coal Is actually used to generate power, ways to control these seemingly toxic emissions, and why, though politically attractive, it is unreasonable to assume its demise, is available at the following link.
http://science.howstuffworks.com/environmental/green-science/clean-coal1.htm
So whether one deals with the issue via technology or process changes, there are solutions that leverage the coal resources prevalent in North America, and help mitigate what might appear to be unreasonable reliance on emerging renewable technologies.
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