NEW HAVEN, W.Va.--A 100-story smokestack belches a roiling, white cloud of water vapor, carbon dioxide and other leftover gases after burning daily as much as 12,000 tons of coal at the Mountaineer Power Plant --a total of 3.5 million tons a year. The facility just outside the town of New Haven boasts a single 65-meter-high boiler capable of generating enough steam to pump out 1,300 megawatts of electricity--enough to power nearly one million average American homes a month--continuously. And now roughly 1.5 percent of the CO 2 billowing from its stack is being captured in an industrial unit rising from the concrete in its shadow and then pumped underground for storage. In case you were wondering, this last phase is called "clean coal". [More]