National Geographic : 2011 Mar
MOVING MOUNTAINS Kayford Mountain, West Virginia J HENRY FAIR As oil companies drill deeper for offshore oil, mining companies work 24/7 to level Appalachian peaks for coal, which supplies half of U.S. electricity. This summit vanished in a day. Some 470 have been erased since the 1980s; the waste often buries streams. Mountaintop removal recovers just 6 percent of a coal deposit.