So often we are told fracked gas is worse than coal for emissions. Here is a peer-reviewed article which claims just that.
Oh dear, it has been retracted for errors which showed just the opposite
Retraction of Peer Reviewed Report Indicates Need for Smear Review
Posted on March 4, 2018 by Tom Shepstone
penneast pipeline – Tom Shepstone ReportsTom Shepstone
Shepstone Management Company, Inc.
A retracted study that had been peer reviewed indicates the danger in relying on it to ensure sound science when it comes to fractivist applauded reports.
Back in 2015, this is how an Akron, Ohio newspaper headlined some methane leakage research then being conducted by the University of Maryland:
Greenhouse Gas Emissions from Natural Gas Wells
Are Increasing & Traveling Far Downwind
A new University of Maryland study shows a steep rise in greenhouse gas emissions from natural gas wells produced by fracking in Ohio, Pennsylvania and West Virginia. The emitted gases travel far downwind from the producing states, suggesting the need for regional cooperation in monitoring and reducing emissions from natural gas production, say the authors.
The preliminary reporting turned into a study released in April, 2017 as a peer reviewed document. Now, the study has been retracted. It’s a lesson in the risk of depending on the words “peer reviewed” as a measure of credibility.
Here’s more from the early reporting on the preliminary research conducted by the same University of Maryland team that produced the subsequent retracted study:
Emissions linked to hydraulic fracturing, the method of drilling for natural gas commonly known as “fracking,” can be detected hundreds of miles away in states that that forbid or strictly control the practice, according to a new paper published in the journal Atmospheric Environment. The study, conducted at the University of Maryland (UMD), is among the latest data presented in the ongoing debate over fracking’s long-term effects on the environment.
The team used years’ worth of hourly measurements from photochemical assessment monitoring stations (PAMS) in the Baltimore, Md., and Washington, D.C., areas to identify the sources of organic carbons in the region’s air. Starting in 2010, the data didn’t seem to make sense…
Preliminary research revealed that there was nothing happening in Maryland that could account for the steep increase. Maryland does not currently permit fracking, but when Ehrman’s team compared the rise in ethane to the extraction of natural gas from the Marcellus shale play in neighboring states, they found a month-to-month correlation. After running a wind rose analysis – a tool used by meteorologists to track the wind direction, distribution and speed in a specified area – they felt even more confident that Maryland was receiving the tail end of emissions originating from Pennsylvania, West Virginia, and Ohio…
“The question you start to ask yourself is, if ethane levels are going up this much, and it’s only a small percentage of all natural gas, how much methane and other, more reactive emissions are escaping from these wells?” says Ph.D. student Tim Vinciguerra, the paper’s lead author. “Following the fracturing process, the well undergoes completion venting to clear out fluid and debris before production. A substantial amount of hydrocarbons are emitted as a result of this flowback procedure.”
These new findings on natural gas emissions also are consistent with established findings by University of Maryland scientists showing westerly winds can carry power plant emissions and other pollution from states like Ohio, West Virginia, and Pennsylvania to the Washington, D.C., region and elsewhere on the East Coast of the U.S.
Thus was a false story born. The University of Maryland team that effectively generated it went on to conclude, in the retracted report, the following (emphasis added):
We estimate the mean ± 1σ CH4 leak rate from O&NG operations as 3.9 ± 0.4% with a lower limit of 1.5% and an upper limit of 6.3%… Although recent regulations requiring capture of gas from the completion venting step of the hydraulic fracturing appear to have reduced losses, our study suggests that for a 20 year time scale, energy derived from the combustion of natural gas extracted from this region will require further controls before it can exert a net climate benefit compared to coal.
There was just one problem; the University of Maryland team had made a critical error, revealed, to their credit, by themselves in the subsequent retraction:
The article… has been retracted by the authors because of an error in wind measurements used to calculate methane emissions in the southwestern Marcellus Shale region. The error was discovered by the authors in October 2017 upon their installation of an improved, differential GPS, wind measurement system onto the aircraft used in this study. The original wind measurements led to an overestimate of methane emissions from oil and natural gas operations.
A reanalysis with corrected winds reduced the total estimated emissions by about a factor of 1.7, with a correspondingly larger reduction in emissions of methane attributed to oil and natural gas in the southwestern Marcellus Shale area.
This is expected to reverse a conclusion of the paper, which had asserted that leakage from oil and natural gas extraction in this region results in a climate penalty compared to the use of coal.
The authors are in the process of submitting a new manuscript based on an updated analysis that will describe the process to correct the erroneous wind measurements used in the original manuscript, provide a more accurate estimate of the methane emissions, and assess the implications of the fossil fuel production from the Marcellus Shale.
If your wondered whether the Akron Beacon Journal covered the retraction with the same enthusiasm as the original research, the unsurprising answer is a simple “no.” That almost never happens, of course. The public was told something that was blatantly wrong and it is now ingrained in memory as part of a big picture on fracking that is one gigantic distortion because of a rush to judgment in a mad dash for political correct publicity and research dollars. Correcting the false impression, as usual, is no easy task and will require years of explanation.
Who’s at fault? Well, we can blame lots of folks, but most of the discredit has to go those who gave the 2017 a peer reviewed imprimatur. Here’s how Tim Benson at the Heartland Institute summed it up:
Jordan McGillis, a policy analyst at the Institute for Energy Research, says with so much potential to affect public policy, it’s troubling the initial paper passed peer review.
“That an error of this magnitude made it through the publication process is unfortunate,” said McGillis. “It is not difficult to imagine the paper’s startling conclusions influenced the public against hydraulic fracturing, against gas infrastructure, and against gas generally.
“Misinformation perpetuates anti-energy bias in our culture and can result in real harm,” McGillis said.
McGillis says state governments in two regions near Marcellus energy operations have limited pipeline development because of environmental activists’ opposition.
“Consider the fact the New York and New England regions should be benefiting from the Marcellus Shale’s proximity but are instead hamstrung by pipeline opposition,” said McGillis. “Just this winter, ISO New England [the regional electric power transmission provider] produced a report citing insufficient gas infrastructure as a leading factor in their prediction of future fuel insecurity and operator-imposed blackouts.”
And, who were those peers? We’ll never know because their names aren’t provided. There’s no accountability with much of peer review today and these are the fruits of such lax publication and university policies. Peer review today now requires smear reviews to get to the truth.