A major gas discovery in the basin of Wyonming's Powder River has led to a gas rush. The pipeline that will pass through Clearmont (U.S.) will not carry the usual cocktail of raw hydrocarbons found in natural-gas streams. It will carry 98% pure methane that can go straight into the pipeline, and from there to industry and keeping homes warm. The source of the methane gives this discovery a special twist: it is released by drilling into coal seams. The coal deposits in the Powder River Basin are among the world's largest.