Wyoming, Utility Clash Over Coal-Boosting, Climate Fighting Tech

A technology used to combat climate change that could boost the ailing U.S. coal industry has provoked a fight between Wyoming and the state’s largest utility, which wants to move away from the coal game in favor of wind and solar.

Coal-dependent Wyoming, aided by a Trump administration study, is arguing for extending the life of the state’s coal-fired power plants and others across the country by retrofitting old plants with technology that would capture and either store or use climate-warming carbon dioxide emissions.

But Rocky Mountain Power, a subsidiary of PacifiCorp, wants to retire several of its aging coal-generation ...