How America's clean coal dream unravelled

Exclusive: Kemper power plant promised to be a world leader in ‘clean coal’ technology but Guardian reporting found evidence top executives knew of construction problems and design flaws years before the scheme collapsedHigh above the red dirt and evergreen trees of Kemper County, Mississippi, gleams a 15-story monolith of pipes surrounded by a town-sized array of steel towers and white buildings. The hi-tech industrial site juts out of the surrounding forest, its sharp silhouette ou