It is bliss to breathe in clean, fresh air with no coal smoke and no dust.

NPR: Part One

Coal ash is captured before it can escape at a smoke stack into the air, it's channeled into ponds near the river and contained there by earthen dikes.

NPR: In Tenn. Town, A Muddy Christmas For Some

Coal operators in the last recession saw their earnings go up in smoke.

FORBES: Grandiosity Is A No-No

Furnaces could no longer emit "dark smoke" and households were offered grants towards the cost of converting their coal-burning grates to smokeless fuel.

BBC: News, London