posted on Mar, 27 2013 @ 03:52 PM
Opponents of fracking claim that the injection of water (and sand and chemicals) into wells to force the extraction of natural gas, can possibly cause
seismic activity, and more likely (almost logically), will pollute groundwater. Oil companies of course reject this possibility.
So it is a huge battle for dissenters to take on as the might of the oil industry are able to draw on countless experts who can convince (bamboozle)
most into accepting this is a safe practice. So any scientific work that offers more balanced insights into the risks should be welcomed.
While this study is not directly related to fracking, the study does add evidence to the belief (at least) that there is a correlation between the
injection of wastewater, and the increase in seismic activity. I think it does not require much imagination to extend this argument to fracking, but
under burden of proof .....?
Probably the main observation / conclusion of this study is that the authors claim, “induced seismicity” can persist (or may be delayed) for long
periods and then produce much larger events (magnitude 5 or more) years later, even though the seismic events that occurred directly after the
injection operation were relatively minor.
In between all the arguments pro and against, there seem to be lots of cracks appearing under the pressure of scientific study and observations.
Nobody seems to contest the increase in seismic activity, and there are somewhat ridiculous arguments that state there are probably many gas and oil
extraction methods contributing to this rise. That should not make them all acceptable, because there are others that are also potential
But it would seem that fracking is indeed involved in a significant way, as the wastewater it produces is often injected underground, just as with
other drilling operations.
The real problem is – will anyone listen to or care about the conclusions offered in this study? There are just too many things hidden (underground
and elsewhere) in this whole story.