Workingman wrote:Sorry, but I simply do not believe the numbers - a link would be nice. I agree that water courses could be polluted, but I do not think that is inevitable. We already poison water sources with agricultural run-off, would fracking really be any worse?
The gas and waste leaks into the water table and poisons it.
http://www.scientificamerican.com/artic ... our-feeth/http://www.theguardian.com/environment/ ... washingtonhttp://www.globalresearch.ca/fracking-s ... es/5368362http://www.globalresearch.ca/fracking-h ... dy/5454353Then there is the article which claims it's all untrue
http://news.nationalpost.com/full-comme ... oned-waterYet if you go to the mentioned, but not linked,
report, You find...
Major Findings
From our assessment, we conclude there are above and below ground mechanisms by which hydraulic fracturing activities have the potential to impact drinking water resources.
Granted they state
We did not find evidence that these mechanisms have led to widespread, systemic impacts on drinking water resources in the United States
and
The number of identified cases, however, was small compared to the number of hydraulically fractured wells.
But then they hedge their bets with
This finding could reflect a rarity of effects on drinking water resources, but may also be due to other limiting factors. These factors include: insufficient pre- and post-fracturing data on the quality of drinking water resources; the paucity of long-term systematic studies; the presence of other sources of contamination precluding a definitive link between hydraulic fracturing activities and an impact; and the inaccessibility of some information on hydraulic fracturing activities and potential impacts.
In other words, they have been looking at it for 4 years, have found some issues, but a handful of the 25,000 to 30,000 wells per year is not considered a great risk.
Of course, until you work out that in 10 years the handful may become a "significant minority" and in 20 years could become "A serious problem". But in 20 years time it will be far, far, too late to do anything about that.
I've been tracking this for a few years now. I'm not overly pessimistic about it, but it is a real risk which has not been clearly quantified and cannot be mitigated if the risk occurs. The water is contaminated, potentially for centuries.