THE PEAKSTERS ARE WELL AND TRULY FRACKED:

What the Frack? Natural Gas from Subterranean Shale Promises U.S. Energy Independence--With Environmental Costs: Natural gas cracked out of shale deposits may mean the U.S. has a stable supply for a century--but at what cost to the environment and human health? (David Biello , 3/30/10, Scientific American)

The Barnett Shale, a geologic formation more than two kilometers deep and more than 13,000 square kilometers in extent, holds as much as 735 billion cubic meters of natural gas—and the city of Fort Worth alone boasts hundreds of wells, according to Ed Ireland, executive director of the Barnett Shale Energy Education Council, an industry group. "It's urban drilling, so you literally have drilling rigs that are located next door to subdivisions or shopping malls."

Although the first well was drilled in 1982, it took until 2002 for the boom to really get started. Now there are more than 14,000 wells in the Barnett Shale, thanks to a combination of being able to drill horizontally and fracking—pumping water at high pressure deep beneath the ground to literally crack the rock and release natural gas.

"They pump a mixture of water and sand—and half a percent of that is some chemicals, like lubricants," Ireland explains. "They pump that into the formation at a very high pressure. Cracks it just like a windshield. And the cracks go out a couple hundred feet on either side and that forms the pathway for the natural gas to migrate to the well bore and up to the surface."

All that natural gas may prove a boon to a U.S. bid for energy independence. Plus, burning natural gas to produce electricity releases roughly 40 percent less of the greenhouse gas carbon dioxide than burning coal.