The Dirty Secrets Of Coal (PHOTOS)

06/25/2010 05:12 am ET | Updated May 25, 2011

Coal is a dirty and dangerous business. It produces more than half of the energy in the U.S. because it is a cheap resource, but it comes at a high human and environmental cost. The coal industry is the single largest producer of greenhouse gas emissions -- and that's just the beginning. We're taking a look at some of the dirtiest secrets the coal industry doesn't want you to know.

The Dirty Secrets Of Coal

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