This article says it all....
http://www.youtube.com/watch?v=SDXqEk9W-Cw --Santa Barbara documentary
Robert Gammon
July 13, 2011
Hydraulic fracturing, better known as "fracking," is quickly becoming one of the most serious threats to the environment nationwide. The controversial process involves shooting thousands of gallons of toxic chemicals and water at high speeds deep into the earth so as to fracture underground shale deposits and release otherwise impossible-to-get natural gas and oil. Fracking, in fact, is becoming so widespread, it's spurring a natural gas boom in the United States. But, so far, it has garnered little attention in California because most fracking has taken place elsewhere. But the spotlight on it could soon shift...continued.
