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"Across the country, billboards are springing up. They feature an image that is arresting&amp;mdash;smoke spewing from a coal plant, a massive power plant behind a school, or the hulking industrial frame of an oil refinery&amp;mdash;and a simple question written i"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/clean-technology/the-many-faces-of-american-power/>