"Tiffany Mellers jogs behind her two daughters as they pedal their bikes along a ribbon of packed sand along Long Island Sound. “They are good girls,” Mellers said. “They deserve a healthy life.” Behind them, a 500-foot tall candy-stripe smokestack, a fixture of Bridgeport’s waterfront for nearly five decades, rises in the distance. A third generation of residents is now growing up in its shadow. But today this old giant is merely a vestige of this region’s coal-fired past. New England is virtually coal-free."