In 2008, Josh Fox received a letter from a natural gas company. They were interested in leasing land owned by his family to do natural gas drilling. The offer was for $100,000, but instead of taking the money, Josh decided to do some research on the natural gas industry and ended up making a documentary called Gasland. It focuses on the impact that modern natural gas extraction, which primarily uses hydraulic fracturing ("fracking"), has on communities and the environment. Click here to view the trailer and here to visit the film's Website. PBS recently interviewed Fox, as did Jon Stewart on "The Daily Show."