Once the dominant source of energy in the United States, today, 401 coal units supply roughly 16 percent of the nation’s grid ...

The measures faced skepticism from mining groups, as well as ranchers hoping to earn revenue from carbon dioxide storage.

Those less-than-friendly coal policies include the U.S. Environmental Protection Agency’s power plant rules requiring ... just months after massive mine layoffs in Wyoming.

A Reuters analysis shows that Berkshire coal plants emit more nitrogen oxide gases than any other coal-fired fleet in the country. Despite big investments in renewable energy, the company has resisted ...

Wind farm operators in Wyoming and across the nation can now bury decommissioned wind turbine blades and other materials at surface coal mines in the ... the American Clean Power Association ...