Energy derived from shale stone and the processes of deriving it, namely hydraulic fracking, have been political hot buttons for a few years now. There's a lot of debate over whether or not fracking is a breakthrough technology or an environmental disaster.
The U.S. Chamber of Commerce has put together a great two and a half minute video explaining the basics. If you want to understand what everybody is arguing about, but haven't been able to find a simple explanation, here's your chance. (h/t Hot Air)
Basically, shale energy and the fracking that produces it give us access to centuries of new natural resources. It also provide us with millions of new high-paying American jobs. All of this while remaining incredibly safe with a small carbon footprint.