The study finds cheap natural gas and declining power demand are driving coal and nuclear power plant closures.

The Hamilton County Emergency Management Agency says authorities on Sunday got dozens of calls about the smell of natural gas in Carmel-area homes and businesses.

President-elect Donald Trump promised to revive the U.S. coal industry, but many industry experts are skeptical.

Indianapolis Power & Light Company received approval Wednesday from the Indiana Utility Regulatory Commission to convert another portion of its Harding Street Station from coal-fired to natural gas-fired.