As coal plants around the country are retired, communities have to fund ways to rebuild.
While some coal miners continue looking for work in the industry, others look to careers outside of coal for more stability.
A recent Pennsylvania gas explosion has raised questions about safety
The Homer City Generating Station burns 16,000 tons of coal per day
Crowdfunding comes to the research lab, and websites spring up to vet projects.
The market for cleaning up the briny waste water is likely to grow dramatically.
Cheap natural gas has made the U.S. one of the cheapest places to make plastics.
