"It's like hell. Living in hell," says Marti Blake, when asked about being neighbors with a coal-fired power plant. "It's filthy, it's dirty, it's noisy, it's unhealthy."

For the past 21 years, Blake has lived across the street from the Cheswick Generating Station in Springdale, PA. A family situation left her trying to find a place quickly, and a simple brick home in the small town only 20 minutes from Pittsburgh seemed fine.