Living as I do in the intermountain west of the U.S., I see a lot of mis-information in forums such as this. It accomplishes little in exposing any truths regarding fracking (even the name is unfortunate and can only in itself reveal bias) but the fact that's being overlooked is the technology of directional drilling that does use 'fracking' as an end result to open the targeted shale bed.
Had it not been for this advance of drilling technology, fracking, in and of itself, wouldn't have contributed to the tremendous efficiency quotient increase seen here. One well drilled to a depth of perhaps 10,000 to nearly 20,000 feet cost millions of dollars to reach the productive shale. But, now, with the same single bore hole, horizontal drilling of multiple production holes from the stem end greatly increases productivity and reduces costs.
So, it's this factor, rather than fracking that has reduced our energy costs. By that I mean, had we still been relying on 70% imported oil (from unstable middle east fields) our costs would truly have skyrocketed. Now, we are actually exporters of oil and its relative, natural gas.
Fact is, it's the environmentalists that do drive costs by limiting our ability to process the gas and oil production. No new refinery has been built in the U.S. in decades. It's estimated 10 to 15 years would be required to build a new one now, given all the permits required by the government. In fact, some individual States
are[i in the process of building their own refineries, which will significantly cut down on Federal involvement. These States are all in the west where the majority of shale oil is produced (with the exception of Pennsylvania).
It should be noted, production of crude oil has little if anything to do with electricity production, since most power plants consume coal (which is also in great abundance) or natural gas. But the cleanest of all, nuclear, is still [i]voreboten] due to a near accident at Three Mile Island nearly 3 or 4 decades ago.
A recent test case of ground water contamination in my home State was found to be without merit. The case took nearly three years and reams of tests to confirm.
All "ground water" is within 2,500 feet or so of the surface, whereas the 'fracked' wells are always at depths of 3 to 5 times that depth. The sealing process at the tops of the wells to below the ground water is perhaps the most closely monitored part of the well drilling.
Earthquakes? Fact is fracturing of rock formations to release oil and gas trapped therein has been used since the late 19th century. In fact fracturing was originally done with explosives and acid etching.
The evidence for earthquakes appears to be associated with oil well wastewater storage rather than shale production (Seen in this State of Texas report:
http://stateimpact.npr.org/texas/tag/earthquake/ ).
It is true that our population density in the western U.S. is significantly less than other places such as the U.K., but factual, proven technology shouldn't be discarded based on bias and fiction. Most hard-core environment groups truly want the U.S. to retrun to late 18th century types of living conditions (as long as it doesn't apply to them)... in my opinion...