Do we know roughly how much coal we have left or how much we have used?



  1. 0 Votes

    There are ways to estimate how much coal we have left, as well as how much we have used, but it’s really impossible to say just how accurate they are.  In 2010, the US Energy Information Administration stated that there were about 486 billion short tons (one short ton = 2,000 pounds) of confirmed coal in the United States, which represents only a small fraction of the estimated four trillion short tons that they beleive exist, though most of it hasn’t been confirmed yet.  Of that, they estimate that about 261 billion short tons can be mined using our current mining technology.  Presently, the US uses just over 1 billion short tons a year, so if we assume that these estimates are accurate, we should have plenty of coal for quite a while.

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