When asked
about whether NY will allow high volume horizontal hydraulic fracturing (aka:
fracking) Governor Cuomo is fond of saying “Let the science decide”. But the
truth is, science can’t “decide”. The best science can do is present the facts,
such as they are known. Policy-makers are the ones who “decide”.
And now
there’s a new book about the science of the shale beneath our feet – a book
that could help our local and state legislators and regulators put more science
into their decisions. The Science
Beneath the Surface: A very short guide to the Marcellus shale was recently
published by the Paleontological Research Institute. PRI has a long history of
addressing contentious issues, such as evolution and climate change. Now add
shale to that list.
This book
grew out of a project to create fact sheets to inform residents about various
aspects of shale drilling. The authors – Don Duggan-Haas, Robert Ross, and
Warren Allmon – added new information and a lot more depth to make the book. Unlike
the earlier projects on evolution and climate change, where there is little
scientific controversy about the major points, there are still significant gaps
in the basic knowledge about Marcellus shale - and significant disagreements
about interpreting the data.
Shale
science is grounded in the rock, but research on gas extraction goes beyond
geology. It includes environmental studies, land use, agriculture, water, air,
human health, engineering… and each of those could demand an entire volume of
its own. But Duggan-Haas, Ross and Allmon wrestled the information into one
volume that explains the basic science of shale, drilling, water, risk and
climate change in language that the average reader can understand – and does it
without advocating for or against any particular action.
The
authors describe the geology and natural fracturing of the formation, discuss
Naturally Occurring Radioactive Materials (NORM) and why these are important to
soils, plants, animals and people. They also address the volatile organic
chemicals released during gas extraction and production.
Want to
know how to drill a well? Read chapter three. Tired of hearing industry folk
claim that fracking has been used for at least 50 years? It hasn’t, say the
authors, and they explain why.
They
discuss human-induced seismicity and earthquake “swarms” and devote an entire
chapter to water. Ross and his colleagues also include a chapter on life cycle
analyses of gas wells and examine something called the PFCI: potential future
climate impact. Even if it turns out that gas
is better than coal, as far as greenhouse gases go, the fact is that burning
gas still contributes greenhouse gases to the atmosphere. So if we simply
switch to burning more gas long-term… “We’ll have a climate disaster,” says
Ross. “The fundamental challenge is to find ways to use less
energy.”
As a very
short guide, The Science Beneath the
Surface does a pretty good job. There are a couple places where information
seems incomplete or lacking, for example well casings.
While the authors note that improper casings and casing failures have
contributed to contamination of groundwater, they don’t say is how often this
happens (6- 7 percent of the time in Marcellus wells drilled in Pennsylvania
with a 60% failure rate over 20 years). And while they mention erosion
regulations (SWPPP) they don’t say anything about federal exemptions from the
Safe Drinking Water Act.
Despite
the small glitches, this book provides a thorough introduction to the science
of shale and should be in the hands of every elected official in the state - especially
if they want to make “science-based” decisions. Read my full review and comments from the authors at Tompkins Weekly.