GaslandCall Number: HD9581.U5 G275 2010 dvd
In the debate over energy resources, natural gas is often considered a "lesser-of-evils". While it does release some greenhouse gases, natural gas burns cleaner than coal and oil, and is in plentiful supply-- parts of the U.S. sit above some of the largest natural gas reserves on Earth. But a new boom in natural gas drilling, a process called "fracking", raises concerns about health and environmental risks.