One reason that the United States began using coal is because of its availability. Recoverable reserves of coal in the U.S. stands at about 275 billion tons, which is enough to meet domestic needs for the next 250 years. Another reason that the U.S. has become attached to coal is because coal mining directly employs about 134,000 people. Estimates are that for each mining job, 3.5 jobs are created elsewhere in the economy.
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