The not so hidden costs of coal

Clean coal indeed. From Huffington Post:

An estimated 500 million gallons of coal ash sludge are seeping along the I-40 Knoxville-Nashville corridor in eastern Tennessee today, after an earthen wall gave way on December 22nd at the TVA Harriman coal-fired plant. While no casualties were reported, the coal ash spill -- the refuse left over after the plant burns the coal --should be a terrifying toxic wake up call about the thousands of coal-fired plants and refuse pile accidents waiting to happen across the county.

For the full article.