[There are] many ... inherent risks of the industry that no amount of regulation can sufficiently remedy, such as well casing, cement failures, and accidental spillage of waste water.

Source: 
"Public Health England’s draft report on shale gas extraction." BMJ: British Medical Journal 348 (2014).
Person: 
Adam Law, Jake Hays, Seth B Shonkoff, Madelon L Finkel
Statement Date: 
Tuesday, 27 May 2014
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Source URL: 
http://press.psprings.co.uk/bmj/april/shale.pdf