In case you missed the documentary called Gasland by Josh Fox that aired on HBO here are some other links and video's you can use to catch you up on this subject.
Basically "Fracking" is the means in which they Fracture rocks to release pockets of natural gas. They do this by pumping toxic chemicals into the rocks to split them open. The chemicals do a number of things but mainly it keeps the gas from exploding.
The problem is the gas and the toxic chemicals seep into water tables feeding our streams, lake and rivers. People who live on or near these sites can literally light their water on FIRE...
Here is an interview with Josh by PBS
Here is an Interview by Rachel Maddow of an activist and actor Mark Ruffalo
Vanity Fair Article
CNN
Wikipedia
