Natural gas hydraulic fracturing is a production in which injects a mix of water, particles, and chemicals underground to create fractures through which gas can flow for collection. Hydraulic fracturing stimulates wells drilled into these formations, making profitable otherwise prohibitively expensive extraction. Within the past decade, the combination of hydraulic fracturing with horizontal drilling has opened up shale deposits across the country and brought large-scale natural gas drilling to new regions.

Hydraulic fracturing, or “fracking”, is the process of drilling and injecting fluid into the ground at a high pressure in order to fracture shale rocks to release natural gas inside. The water is transported to tanks and then deposited with a lot of chemicals. This brings contamination; during this process, methane gas and toxic chemicals leach out from the system and contaminate nearby groundwater. Methane concentrations are 17x higher in drinking-water wells near fracturing sites than in normal wells. Due to this contaminated well water is used for drinking water for the nearby cities and towns.

In my opinion it is understandable why this drillings are necessary, nut they need to be more care full of where are they doing these gas drillings, because there have been more that 1,000 documented cases of water contamination bringing sensory, respiratory and neurological damage due to ingested contaminated water.

http://www.earthworksaction.org/issues/detail/hydraulic_fracturing_101#.VO_qfmY4rbU

http://iehn.org/overview.naturalgashydraulicfracturing.php

http://www.dangersoffracking.com/