U.S. sky stripe program boosted by huge coal ash sector By David Tulis Coal fly ash is a fine particulate matter that looks and feels like talcum powder and can be a tan or gray color. It is produced by coal-fired steam plants in Tennessee and around the country, and while it is waste and trash and leftovers, it is viewed as a product and a recyclable. According to a controversial new paper, coal fly ash is the material used by the U.S. government in an off-budget and off-the-books program to  defeat what it declares is a global warming threat … Continue reading U.S. sky stripe program boosted by huge coal ash sector