But nobody knows which states. It depends on how the rules get written.

The Obama Administration readies its regulation of carbon-dioxide emissions.

The toxic discharge from coal plants beats Portland cement when used in concrete.

Coal communities in eastern Kentucky have been reeling from the effects of a relentless wave of mining layoffs.

England still depends on coal for 40 percent of electricity

Brampton lost its coal mine 30 years ago, despite a year-long miner's strike. What's there now?

In eastern Kentucky, coal mines are closing, putting thousands out of work.

The main problem is that Kentucky coal is played out and expensive to mine.

Coal may be synonymous with pollution but as coal historian Barbara Freese found, that wasn’t always the case.

China has some of the worst smog in the world – impacting the lives of more than a billion people as well as the bottom line for the world’s second biggest economy.