Dunn, Gail2012-02-062012-02-061993-120040-4586http://hdl.handle.net/1969.3/28278Photos by Stephan MyersA Texas company is using coal ash waste from power plants to build saltwater artifcial reefs. The coal ash is being recycled instead of being disposed of in a landfill, and the reefs create important underwater habitat for marine life.en-USartificial reefscoal ashHouston Lighting & Poweroyster reefsArticle