Reuters: Cancellation of a coal-fired power plant in Michigan announced on Friday brings to 97 the number of plants scuttled since 2001, said the Sierra Club, an environmental group that opposes coal plants because they are major emitters of gasses blamed for global warming. Plans remain active for only 59 of the 220 coal coal-fired plants planned and in various stages of permitting since 2001, said Bruce Nilles, head of the Sierra Club’s campaign to eliminate coal-fired power plants in the …