How Were Fossil Fuels Formed?
How Does Hydraulic Fracturing Work?
Claims of Advocates: The Benefits of Hydraulic Fracturing
What Are the Challenges of Fracking Natural Shale Gas Reserves?
Energy and a Sustainable Future
After the Frack
Recycling Dirt: A New Niche in the Fracking Industry
Side Trips from Interstate 5: Kettleman Hills
Fracking in Urban Oilfields: A New Study Sparks More Debate