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NRC report concludes hydraulic fracturing poses low risk for causing earthquakes, but risks are higher for wastewater injection wells; CCS impact undetermined

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Schematic diagram of a shale gas well following hydraulic fracture treatment, with the relative depths of local water wells shown for scale. Hydraulic fracturing (“fracking”) extracts natural gas by injecting a mixture of water, sand, and chemicals in short bursts at high pressure into deep underground wells.

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CU-Boulder technique finds major class of fracking chemicals no more toxic than common household substances; “fingerprinting”

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EO28), were identified in hydraulic fracturing flowback and produced water using a new application of the Kendrick mass defect and liquid chromatography/ quadrupole-time-of-flight mass spectrometry. Surfactants reduce the surface tension between water and oil, allowing for more oil to be extracted from porous rock underground.

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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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At issue is the 2012 expiration of the Kyoto Protocol, a binding but effectively unenforceable 1997 treaty that had set greenhouse gas (GHG) emission reduction targets for 40 industrialized countries, referred to as Annex 1 countries, yielding an average GHG reduction of 5.2%

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