Dear EarthTalk: I understand that mountaintop removal as a way of coal mining is incredibly destructive. Didn’t a report come out recently that named major banks that were funding this activity? -- Seth Jergens, New York, NY

Yes it’s true that many major banks invest in companies that engage in the environmentally destructive practice of mountaintop removal (MTR) coal mining, whereby the tops of mountains are removed by explosives to expose thin seams of recoverable coal. The wasted earth and other materials are either put back onto the mountain top in an approximation of their original contours, wreaking havoc on local ecosystems and biodiversity, or dumped into neighboring valleys, polluting lakes and streams and jeopardizing water quality for humans and wildlife.

According to the non-profit Rainforest Action Network (RAN), this dumping—especially throughout Appalachia where MTR is most prevalent—“undermines the objectives and requirements of the Clean Water Act.” The group adds that some 2,000 miles of streams have already been buried or contaminated in the region. “The mining destroys Appalachian communities, the health of coalfield residents and any hope for positive economic growth.”

This past April, RAN teamed up for the second year in a row with another leading non-profit green group concerned about MTR, the Sierra Club, in publishing a “report card” reviewing 10 of the world’s largest banks in regard to their financing of MTR coal mining projects. The new 2011 version of “Policy and Practice” takes a look at the MTR-related financing practices of ...