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April 27th, 2015 12:06 AM #21
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April 27th, 2015 12:12 AM #22Which brings us to this:
Some evidence suggests that movement of methane from shale gas wells to groundwater wells in overlying aquifers may have occurred in the Marcellus [56–58] and Barnett shale plays [56], but these studies have been controversial and have been challenged as lacking evidence that the methane came from the fractured area. A related study in the Arkansas Fayetteville Shale did not detect evidence in groundwater of stray gas contamination, or contamination by brine [59]. Results from studies observing methane in water wells near shale gas development are consistent with well casing and cementing failures rather than upward migration from the shale formations through fracking itself (or through natural conduits) [56]. The fact that current research points to faulty casing and cementing (rather than fracking, per se) as the likely cause of observed groundwater contamination suggests the need for additional scientific and policy analysis in this area.
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April 27th, 2015 12:13 AM #23
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April 27th, 2015 12:16 AM #24So tsikoters:
"Common sense" is not very common sometimes because the truth can sometimes be counter-intuitive.
Methinks the Battle of Carthage scene in Russel Crowe's Gladiator (yr. 2000) is a homage to that...
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