In December of last year, Ars reported on a major EPA study in Pavillion, Wyoming that concluded hydraulic fracking operations there had contaminated the groundwater aquifer. While there wasn’t a clear link to contamination detected in some shallow private water wells, EPA believed the deeper contamination was very likely related to fracking. This determination came primarily from two deep monitoring wells that EPA had installed for the investigation.
By Jessica Dye
PHILADELPHIA -- Demonstrators in the United States and other countries protested Saturday against the natural gas drilling process known as fracking that they say threatens public health and the environment.
This month, the Pennsylvania Department of Environmental Protection released its bi-annual report on how much natural gas has been produced in the Marcellus Shale, a rock formation which stretches underneath much of Appalachia.
From ProPublica's Abrahm Lustgarten:
In Pennsylvania, the controversial practice of fracking can consume 4.5 million gallons of water per well, the liquid pumped deep underground to crack rocks that contain natural gas. In parts of Texas, fracking a well often takes 6 million gallons.
Hide caption Mike and Nancy Leighton live in Leroy Township, Pa., where residents have been dealing with flammable gas puddles and tainted well water.
Bob Gathany/The Huntsville Times, via Associated Press Norman R.
Motivated Reasoning This week I was reading an article from the Associated Press called Some fracking critics use bad science .
1. Business Insider - A planned shale gas drilling project in New York state has drawn global attention for its aim to make use of a waterless form of hydraulic fracking – a new technique designed to reduce the pollution associated with controversial natural gas drilling processes. The project (in the Marcellus Shale) is focused on using a technology that pumps a thick gel made from propane into the ground as opposed to using traditional methods of hydraulic fracking that make use of a mixture of water, sand, and chemicals to extract natural gas reserves from deep shale formations.
The salt of the Earth may hint at trouble for the fracking industry's safety claims, according to a new geological study – although other researchers disagree. Hydraulic fracturing uses pressurised fluid to crack open deep shale rocks to release the methane trapped within them. Geologists say this potentially harmful fluid is unlikely to percolate up through a few kilometres of rock to reach the shallow aquifers that supply drinking water – but Avner Vengosh of Duke University in Durham, North Carolina, thinks the methane itself could do so.
A recent debate from Intelligence Squared U.S. examined the growing American shale gas boom and brought experts together to discuss the pros and cons of fracking .
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New hazard of gas drilling: flow-back water
“Whoa, that’s not supposed to happen.” Thus spoke Josh Fox, master of the understatement, after he witnessed a man, whose house neighbors a natural gas well, light his kitchen tap water on fire. And by “fire” I don’t mean a delicate tongue of flame like on a candlestick: it’s an honest-to-goodness fireball that comes blazing out of that tap.
Shale gas | Gaz de schiste
Fracking in USA