What the peer-reviewed science says about shale gas

Shale gas exploration and extraction via hydraulic fracturing is a controversial and polarizing topic in New Brunswick. The public is divided on the issue and, as is often the case these days, social media are being used to rally supporters to one side or the other. Inflammatory rhetoric and exaggerated claims appear to dominate the discussion. That being said, it is far from clear yet whether NB has a sufficiently large and economically extractable reserve of gas to create a significant industry; it may turn out that shale gas may not exist in sufficient quantities,  or prices may not be sufficient to justify development at this time.  On the other hand, the gas is a public asset and so discussion of how to develop (or not develop) and utilize the asset is merited. For a useful outline of the shale industry in New Brunswick, see an article by A. Park of UNB (16) and an opinion piece by various UNB researchers.

The development of hydraulic fracturing technologies over the past 30 years or so has made extraction of shale gas economically feasible and attractive prices have allowed the industry to expand rapidly. An abundance of gas in the marketplace pushed down prices in 2011-2012 and the expansion of the industry has slowed somewhat. Information in the peer-reviewed scientific literature with respect to adverse environmental and health impacts from shale gas extraction is now beginning to appear. A number of these articles are available for free download and I would encourage people to read them, rather than accept the interpretations that appear in various media (or my interpretations, for that matter). It is fine to have opinions, but much better to have opinions based in verifiable data. Then we can have a rational discussion.
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