Archive for the ‘Hydraulic Fracturing’ Category
The BBC have very helpfully posted the recent Panorama programme ‘Energy Bills: Power Failure’ on YouTube (as embedded below). Presented by Tom Heap (who regularly does spots on CountryFile), it is very fair-minded and includes contributions from a wide range of people. Therefore, even if you do not live in the UK, I would recommend watching the programme because: it is very good at describing the problems that we all face; and makes it crystal clear that we must find a solution (but does so in a way that somehow avoids being dogmatic).
Some questions I would like help in answering are as follows:
1. What is the instrumental music used in the opening night-time sequence in Blackpool?
2. Why do so many poor people use the most expensive (pay-as-you-go) way to heat their homes?
3. Can we give Angel Gurria (Secretary-General of OECD) a Nobel Prize for plain-speaking?
4. How can anyone avoid concluding that Ed Milliband is an opportunist and a con-man?
5. Why did the CEO of RWE nPower not admit profit margin on generation (as opposed to sales)?
6. Is the need for decarbonisation actually incompatible with power generation being privatised?
7. Why has carbon capture and storage not been made a priority in order to continue burning coal?
8. Is it realistic to think that (in a post-carbon era) energy will ever be cheaper than it is now?
9. When will the UK government admit that fracking is not actually low-carbon and (thus) not the answer?
10. Has Michael Fallon not read the BGS report that says only 10% of shale gas is probably recoverable?
Whilst I am aware of – and have previously quoted – Lord Deben (i.e. leader of of the Committee on Climate Change – the advisory group David Cameron and George Osborne are ignoring so studiously), I was not aware of the campaign he is heading on Twitter. Thanks must therefore go to John Havery Samuel for alerting me to James Murray’s Are the Green Tories preparing a fight back? article on the BusinessGreen website.
As a child, just about everyone in the UK will probably remember learning about the story of Elijah humiliating the prophets of Baal on Mt Carmel (i.e. as recounted in 1 Kings 18 in the Old Testament). However, not all may recall the crisis of faith that followed this tremendous victory (see 1 Kings 19). Although I have never really had the moment of victory, I often feel that I have sure spent a long time having a crisis of faith. However, once you appreciate that I am a socially-conservative environmental realist (see links below if you don’t believe me), I think my persistent feeling that I am in an extreme minority becomes entirely understandable.
I would very much recommend that you read the entire story (i.e. of Green Conservatives preparing a fight back) on James’ blog. Hopefully these opening paragraphs will encourage you to do so:
One of the bright spots in an otherwise pretty dispiriting summer for the UK environmental movement has been the unlikely emergence of Tory grandee John Gummer as Twitter’s latest eco-warrior. Now known as Lord Deben, the former Environment Secretary and current chair of the independent Committee on Climate Change has provided a beacon of centre-right common sense on matters environmental – and all in 140 characters.
He has argued that fracking may be useful, but will never provide a silver bullet for the UK’s energy crisis; repeatedly challenged “climate deniers and dismissers” to provide one example of a credible institution that supports their crackpot theories; and taken numerous pot shots at ill-informed anti-green commentators and several of his climate denying colleagues in the Lords. All because, in his own words, “no reasonable person would ignore expert opinion and wager his children’s future on the contrarian views of people who are not peer reviewed”.
It has been a breath of fresh air and a useful reminder that not all Conservatives have signed up to the reckless vision being relentlessly promoted by Lord Lawson and the Murdoch press – a vision whereby fracking miraculously saves the economy and climate change is either not really happening or left to look after itself. They may not have access to the media foghorm enjoyed by their less progressive colleagues, but there are some Tories who still understand the existential threat posed by climate change, the value of the green economy, and the relationship between conservation and Conservatism. The big question for the UK’s green political scene is whether or not there are enough of them and whether they can wrestle back control of a narrative that Lord Lawson and his friends have recently steered in their own direction.
For those that would challenge my assertion that I am (or can be) ‘socially conservative’, I can only refer you to things I have written on this blog previously:
Similarly, for those that would challenge my assertion that I am an environmental realist, I can only refer you to the following:
I admit it, even though I am (or would like to be) socially conservative, George Monbiot is one of my heroes. His long track record of illuminating the stupidity of climate change scepticism was one of the reasons I decided to pursue the subject in my MA research.
In his most recent offering on his blog (and in the Guardian on 20 August), George has brillianly highlighted the astounding double standards at the heart of current UK energy policy:
“The government is introducing a special veto for local people to prevent the construction of wind turbines… [Whereas the] government’s new planning guidance makes [Fracking] developments almost impossible to refuse… If local voters don’t like it, they can go to hell…
It has taken me 20 years and an MA in Environmental Politics to work out why I was so uncomfortable being involved in the extractive industries (i.e. mineral exploitation). George achieved this in little more than a few minutes:
Extracting resources, like war, is the real deal: what politicians seem to consider a proper, manly pursuit. Conserving energy or using gas from waste or sustaining fish stocks are treated as the concerns of sissies and hippies: even if, in hard economic terms, they make more sense.
Herewith appended below is an email I sent today to Professor Iain Stewart (and copied to all those named in it).
However, please note that I have just found the BBC TV programme to which it refers has now been posted on You Tube (also appended below).
Dear Professor Stewart,
I wanted to express my appreciation for the sensitive way in which you handled the issues in last night’s Horizon programme and for all the facts, figures and research findings it contained. I was particularly interested in the evidence that shale gas has escaped from poorly-constructed wells in the USA. Even if the UK can improve on the 6 to 7% failure rate in the USA, 100% success (i.e. no failures) is highly improbable. Therefore, if fracking must be pursued (for whatever reason), this would make it imperative that the British Geological Survey establish baseline monitoring for methane as soon as possible. Would it be possible to get a copy of the transcript of the programme (or a list of References)?
Given my geological background and my MA in Environmental Politics, I have written a great deal about Fracking and Carbon Capture and Storage (CCS) on my blog. However, having started out very much opposed to both Fracking and CCS, my position has evolved as a consequence of ‘exchanges of views’ I had last year with Professor Peter Styles (Keele) and with Professor Robert Mair (Cambridge/Royal Society). As a result of these exchanges – summarised or linked to here on my blog – I would agree with Peter that we probably need shale gas. However, I believe Peter also agrees with me that we probably cannot afford it*. I also understand that the remit of the Royal Society specifically excluded the long-term sustainability implications of pursuing fracking.
Nevertheless, this leaves me wondering whether you could encourage the BBC to do a second programme to address the consequences of humans burning all the Earth’s fossil fuels simply because they are there; and/or the need for ‘Western’ per capita energy consumption to be drastically reduced? Having read David MacKay’s book, Sustainable Energy: Without The Hot Air, I think our biggest problem is that most people do not think holistically about the problems we face or, even worse, they seem to think concepts such as ‘ecological carrying capacity‘ are just [eco-Fascist] propaganda. However, although it would seem that CCS is now going to be essential in order to minimise anthropogenic climate disruption (ACD), I think it is also the biggest obstacle to getting politicians to take decisive action to decarbonise our power generation systems.
Even if such a second Horizon programme is not likely, I remain very appreciative of all you have done – and are doing – to raise the profile of ACD as an Earth Science issue that should be of concern to all.
Kind regards, [etc]
* If fracking becomes the new energy boom, it is very hard to see how CCS will ever be able to be rolled-out on a global scale to keep pace with unabated CO2 emissions.
The Stone Age did not end because we ran out of stone!
I know this has been said many times. Most recently it has been said by one of my favourite environmental commentators/campaigners, Executive Director of CIWEM (the Chartered Institution of Water and Environmental Management), Nick Reeves OBE. If any new readers are not familiar with him, they may wish to start by typing his name into the Search this Blog box (in the right-hand column) and see what happens…
CIWEM publishes a monthly magazine, to which Reeves nearly always contributes an article. Last week, my copy of the May 2013 issue arrived early. It includes an article by Reeves entitled, ehem, “A bonkers energy solution”. However, the online version is indeed entitled “Fracking Mad“. Reeves begins with a seemingly bizarre discussion of the failings of the UK’s education system. However, it soon becomes clear that he considers this to be at least partly to blame for the fact that the general public are willing to accept a “bonkers energy solution” such as hydraulic fracturing. However, it is UK government policy that is “bonkers” (the general public just don’t seem to realise it):
Last December, the energy and climate change secretary, Ed Davey, gave the go-ahead for fracking (the controversial technology for releasing underground shale gas) as part of a plan for maximising the use of (so called) low-cost fuel. In so doing the government has thumbed its nose at legally binding carbon emissions targets and cuffed the country to a fossil-fuel future. Worse still, its commitment to fracking will undermine investment of billions of pounds in renewables, geothermal and energy efficiency. We now know that the ‘greenest government ever’ tag was shameless and that ministers are back-sliding on their commitment to a low-carbon and green economy.
Reeves goes on to recount the recent history of fracking in the UK and mentions all the (probably spurious) safety concerns. Like me, he focusses on the fact that we probably cannot afford to pursue fracking because of the long-term consequences doing so will have; and that we simply must find a way to do without it. However, he is more blunt than I have been, and criticises the reviews the Government commissioned for not making this point:
The scientists appear to have ignored the fact that no amount of control and regulation can stop shale gas from being a fossil fuel or from releasing carbon dioxide.
This is an important point well made. However, in defence of the scientists (and engineers) asked to determine whether fracking is ‘safe’, I would have to point out that the questions of the long-term environmental sustainability, sensibility and/or survivability of fracking were carefully excluded from the remit of the reviews that the Government asked them to undertake. Reeves therefore concludes that fracking is “a reckless move driven by ideology” that “will commit the UK to being a fossil fuel economy and not a low carbon one” for decades to come… And so, you can almost hear the frustration in Reeves’ voice as he asks:
What will it take to get people to understand the seriousness of the climate change catastrophe that awaits us?
Reeves then goes on to talk about carbon budgets and our rapidly-declining chances of limiting global average temperature rise to 2 Celsius (compared to pre-1850) and makes the point many others have made that global reserves of fossil fuels are five times greater than that which we would have to burn in order to guarantee at least 2 Celsius temperature rise. As Reeves puts it:
In other words, we can only avoid devastating climate change if we keep most of the world’s fossil fuels in the ground. But, is that possible? Can we deliberately forgo what many regard as our most precious energy resource – the fuels that have powered 200 years of industrialisation – for the sake of future generations? It is absolutely possible, and we must. The Stone Age did not end because we ran out of stone. (my emphasis)
The remainder of Reeves’ article (which I would encourage all to read) is a typically incisive summary of how this problem is entirely solvable. We do not lack the technology or the resources to produce the electricity to provide for the needs of even 10 billion humans. What we (or at least our politicians) lack is the intellectual honesty to admit that the game is up. Fossil fuels are not the solution; they are the problem. Furthermore, the longer we (or they) fail to acknowledge this, the greater the problem will become.
Reeves looks at the situation from a range of perspectives, UK, EU and global. However, in the end, this is a problem that will only ever be solved by people demanding that their politicians solve it:
The dash for oil in the Arctic and the dash for shale gas elsewhere, shows that we are as addicted to fossil fuels as we ever were. But a low-carbon future is the one we must all fight for – our gift to the unborn.
I happened to stumble across a BBC TV Horizon special, entitled ‘Tomorrow’s World’ last Thursday. It begins with a fascinating review of humankind’s history of – and propensity for – invention. It also explains some truly fascinating – and inspiring – developments in the spheres of space exploration, nanotechnology, biotechnology, and power generation.
In the introduction, the programme presenter and narrator Liz Bronnin explains how, after 100s of thousands of years of technological stagnation, the fast-moving world of technological innovation is very definitely a modern invention.
She then looks at how, since our governments announced they were not going to do so, private investors are now involved in a race to return to the Moon (and win a $US 20 million prize). Just after 11 minutes in, however, economist Marianna Mazzucato makes the point that private sector development would never happen unless governments first spent money innovating (just look at your Computer, iPhone, or SatNav).
This is followed by an examination of the invention of graphene (i.e. the repeated use of sellotape to produce a film of graphite comprised of only one layer of carbon atoms in a hexagonal matrix). It is truly astonishing what graphene can do – including carry the weight of a cat…
After 23 minutes, a variety of talking heads demonstrate the complexity of modern science and the impossibility of any one person understanding it all. However, Bronnin then presents the example of Professor Robert Langer at MIT. What he is doing – and enabling others to do – is truly amazing; including potentially doing away with the need for chemotherapy to treat cancer.
After about 32 minutes, Bronnin introduces the power of the Internet to promote innovation – crowd-sourcing research funding and the concept of open-source technology – the complete abrogation of intellectual copyright… It is a fundamental challenge to globalised Capitalism; but it may well be the solution to many of our problems…
However, to me, the final third of the programme is by far the most fascinating… It looks at the challenges of finding a replacement for fossil fuels. It provides a very clear message that this is a technological challenge driven by the reality of physics – not by ideology.
It presents the case for synthetic biology, which has now succeeded in genetically modifying cyanobacteria so that they use photosynthesis to produce ethanol. This is brilliant, but, it is still only recycling CO2 (it is not removing it from the biosphere). With this technology, we could stop the CO2 content of the atmosphere from rising (but it will not help get it down again).
In the final 10 minutes of the programme, Bronnin presents the inspiring case of the British inventor, Michael Pritchard, who miniaturised water treatment technology as a result of watching the aftermath of the Boxing Day tsunami of 2004; when people were surrounded by water they could not drink… Indeed, to prove that it works, he even gets Bronnin (at 54 minutes) to drink water extracted from a tank including all kinds of unpleasant things including dog pooh…
For all these reasons, if you have not seen it, I would recommend that you watch the programme:
Re-engineering nature for our benefit will, without doubt, be very very useful. However, I still think the optimism of the comment at the very end of the programme “…I never worry about the future of the human race, because I think we are totally capable of solving problems…” is very unwise. This is because anthropogenic climate disruption is a problem that is getting harder to solve the longer we fail to address it effectively.
Bronnin concludes by saying that, “it is an exciting time to be alive…” However, I remain very nervous. This is because, as Professor Peter Styles of Keele University – a strong supporter of the hydraulic fracturing industry – recently acknowledged, it will be impossible for carbon capture and storage to remove enough CO2 from the atmosphere to prevent very significant changes to our climate. This is because of the collective hypnosis that deludes most people into seeing perpetual economic growth as the solution to all our problems.
In short, I am certain that technology alone cannot save us. In order to avoid the ecological catastrophe that all but the most ideologically-prejudiced and wilfully-blind can see developing all around us… we need to modify our behaviour: This primarily means that we need to acknowledge the injustice of a “use it up and wear it out” mentality and, as individuals, all learn to use an awful lot less energy.
Climate change “sceptics” have picked a fight with history and science – primarily with the concept of Entropy - and they will lose. The only question that remains is this: Are we going to let them put us all in (what xraymike79 recently called) ‘the dustbin of failed evolutionary experiments’.
I must credit recent subscriber xraymike79 with apparently coining this term, in his recent post, entitled ‘Mankind’s Infantilism and the Death of the Planet‘. However, before clicking, please note that this contains adult themes that some might find disturbing. For example, here is just a snippet:
This Earth is all we really have. Start caring for it and respecting it with the same reverence and homage we pay to our electronic toys of mass distraction, i.e. TV, iphones, video games, computers, etc.. Know that this culture of self-worship and materialism is sending our species to the dustbin of failed evolutionary experiments, most certainly by the end of this century if not mid-century. The evidence is all around us if only we care to open our eyes.
Now is probably not a good time to admit that I have been tempted back to Sky with a 75% reduction on my subscription for 9 months. However, the above chimes with an item written by John Hulburt, posted on Learning from Dogs yesterday, entitled ‘E Pluribus Unum’. For example, take this:
We know we’re in trouble when our legislatures have been purchased, when faith in our financial system has been willfully damaged, when political leaders engage in childish tantrums to get their way regardless of anything or anyone else, when awareness of moral reality has become meaningless and when we fail to appreciate the depths of a looming abyss. What do we gain by purposefully destabilizing our economy, reopening settled social issues and blatantly risking our inclusive future as a species for a mess of pottage? Who do we think we are?
Good questions, gentlemen. Who do we think we are; and when are our politicians going to stop lying to themselves and us? Here is a quote from James Hansen in Storms of my Grandchildren:
Ladies and gentlemen, your governments are lying through their teeth. You may wish to use softer language, but the truth is that they know that their planned approach will not come anywhere near achieving the intended global objectives. Moreover they are now taking actions that, if we do not stop them, will lock in guaranteed failure to achieve the targets they have nominally accepted. (p.184)
Hansen then goes on to at least six ways that governments are planning to fail (because they assume carbon capture and storage can be made to work fast enough to prevent catastrophe), by encouraging (1) construction of new coal-fired power plants; (2) construction of new plants to turn coal into oil; (3) development of tar sands (the dirtiest of all unconventional fossil fuels); (4) exploration for fossil fuels in wilderness areas; (5) hydraulic fracturing despite methane release; and (6) opencast coal mining everywhere. For more on this topic see: ‘Hansen says we should FART‘ (i.e. fundamentally alter resource trajectories).
It is little wonder, then, that Thomas L Friedman, writing in the New York Times on Sunday, said this:
Face it: The last four years have been a net setback for the green movement. While President Obama deserves real praise for passing a historic increase in vehicle mileage efficiency and limits on the emissions of new coal-fired power plants, the president also chose to remove the term “climate change” from his public discourse and kept his talented team of environmentalists in a witness-protection program, banning them from the climate debate. This silence coincided with record numbers of extreme weather events — droughts and floods — and with a huge structural change in the energy marketplace.
What was that change? Put simply, all of us who had hoped that scientific research and new technologies would find cheaper ways to provide carbon-free energy at scale — wind, solar, bio, nuclear — to supplant fossil fuels failed to anticipate that new technologies (particularly hydraulic fracturing and horizontal drilling at much greater distances) would produce new, vastly cheaper ways to tap natural gas trapped in shale as well as crude oil previously thought unreachable, making cleaner energy alternatives much less competitive.
Friedman’s ambivalence to hydraulic fracturing (elsewhere in his piece) may be deeply flawed but, sadly, I think his analysis of recent history and prediction of what Obama will now do are both probably right.
Therefore, it is also little wonder that James Hansen’s Fee and Dividend system is not being taken up: because it is not in the interests of big business to take it up. It is only in the interests of the Environment; and the Environment does not seem to matter. See Hansen’s recent ‘Fork in the Road’ [PDF].
The Earth is being sold to the highest bidder and most of its inhabitants are too busy distracting themselves to even notice. The whole thing is like an episode of Charlie Brooker’s Black Mirror…
I am not sure what good it will do unless the whole World decides to stop self-harming as well but…
One way to stop Ecocide in Europe would be to stop Hydraulic Fracturing from going ahead in your neighbourhood. The best way to do this would be to form or join a local protest group: See the Frack-Off website for details.
As a hydrogeologist who has spent many years working on Landfill sites, I am well acquainted with methane; and how it is better to burn it than to let it escape into the atmosphere. Therefore, even if you discount all the immediate environmental hazards associated with fracking, you should be very concerned about the uncontrolled releases of methane that will occur if fracking becomes common practice. As per my recent blog post, Stephen Leahy explains why here.
Meanwhile, on the subject of those immediate environmental risks, here is the inside story from someone who was, until comparatively recently, directly involved; environmental scientist Jessica Ernst (thanks Christine).
Ultimately, of course, ecocide will only be avoided if we stop doing the things that are causing it. And the main thing we are doing that is causing it – is growing in numbers in the absence of predators; consuming exponentially-increasing amounts of food and water; and producing exponentially-increasing amounts of waste. This is no idle piece of misanthropic rhetoric – it is a cold hard fact.
Louise Gray published a short article on the Telegraph website yesterday, in which she cites Sir David Attenborough as having described humans as a plague on the Earth that need to be controlled by limiting population growth. This has attracted an an awful lot of attention and comment; most of it negative; and some of it very unpleasant. What I find most astonishing is the inability of so many admittedly-self-selected people to appreciate the difference between ideology and science. Furthermore, despite little evidence of scientific training in many of their comments, they seem content to accuse Attenborough of being a bad scientist; a bad person; and of peddling bad ideology. All this reality inversion prompted this comment from me:
Absolutely stupendous amounts of Dunning-Kruger Effect in evidence here: Despite the fact that only 49% of the population can be better-than-average at doing anything — and a far smaller percentage are likely to know what they are talking about in this instance — the fallacy of the marketplace of ideas is clearly the intellectual fortress to which the ideologically-prejudiced retreat when confronted with the scientific realities of Nature.
A few hours earlier I had found it necessary to respond to a particularly stupid assertion (that every human could be given 1000 square feet and there would still be room for plenty more) by saying this:
You need to look up the terms “ecological carrying capacity” and “overpopulation” in a reputable scientific dictionary. The latter is dependent on the former – which is specific to local conditions – so even one person per square mile makes a desert overpopulated.
If you think that a seven-fold increase in the human population since the Industrial Revolution is not a problem – especially as we are running out of the “cheap” energy that facilitated it – you are picking a fight with basic biological science: Populations of any species are limited by food supply and by predation. Humans have no predators but, having ignored (or disputed) the warnings for decades, we are now beginning to see people fighting over access to clean water and food; or at very least complaining about the price of life’s essentials – hence the Arab Spring.
The writing is very much on the wall. We ignore it (or dispute the fact that it is there) at our peril.
* UPDATE: With thanks to fellow-blogger Pendantry for alerting me to this video of Guy McPherson (University of Arizona), note that research published in the US Proceedings of the National Academy of Sciences (PNAS) in 2009 concluded climate change is already irreversible!
Having recently discovered the WordPress blog of international environmental journalist Stephen Leahy, he has now given me permission to also re-publish, in full, an article about hydraulic fracturing (i.e. “fracking”), which he originally published nearly a year ago and has just updated. It is from this recent update (inserted at the top of the original piece) that the title of my blog post here is derived. However, apart from thanking Stephen for permission to re-publish this – and urging all readers to take note of the recent research regarding methane released by fracking – I think further words from me would be superfluous.
This and all images below are taken from http://stephenleahy.net
UPDATE Jan 2013:
Yet another study reveals fracking has a huge problem of gas leaks. Up to 9% of the gas pumped out of the ground leaks into the atmosphere according to a study by National Oceanic and Atmospheric Administration (NOAA) published in Nature this week. Natural gas (methane) is a powerful greenhouse gas. If these leaks are widespread, fracking is worse than burning coal, accelerating global warming.
In Jan 2012 I detailed new research in the article below showing that replacing coal with natural gas from fracking does little to fight climate change (see below). Now two studies published that since then make an even stronger case that fracking for natural gas is a HUGE MISTAKE:
From Nature: ‘Air sampling reveals high emissions from gas field’. Methane leaks during production may offset climate benefits of natural gas.
From Environmental Research Letters: ‘New study demonstrates switching to natural gas is the path to climate disaster’. What’s needed is an aggressive deployment of zero-carbon technologies and conservation. Joe Romm explains. — Stephen
Shale Gas Worse Than Coal Study Finds
By Stephen Leahy
UXBRIDGE, Canada, Jan 24, 2012 (IPS)
Hundreds of thousands of shale gas wells are being “fracked” in the United States and Canada, allowing large amounts of methane, a highly potent greenhouse gas, to escape into the atmosphere, new studies have shown.
Shale gas production results in 40 to 60 percent more global warming emissions than conventional gas, said Robert Howarth of Cornell University in New York State.
“Shale gas also has a larger greenhouse gas footprint than oil or coal over the short term,” said Howarth, co-author of a study called “Venting and Leaking of Methane from Shale Gas Development” to be published in the journal Climatic Change.
(Audio of news conference)
This latest study follows up on Howarth and colleagues’ controversial April 2011 paper that provided the first comprehensive analysis of greenhouse gas emissions from shale gas obtained by hydraulic fracturing. That study found that when gas wells are “fracked”, they leak large amounts of methane and pose a significant threat to the global climate.
“We stand by the conclusion of our 2011 research,” said Howarth.
That research undercuts the logic of energy sector claims that shale gas is a “bridge” to a low-carbon energy future. Those claims are based on the fact that natural gas (which is mainly methane) has half the carbon content of coal, and when burned for electricity it is more energy efficient than coal.
However, those climate gains are more than negated by methane leaks both at the well during the fracking process (called flow-back), and through the gas delivery and distribution system. Howarth and colleagues estimate that between 3.6 and 7.9 percent of all shale gas produced leaks – called “fugitive emissions” – into the atmosphere, making it worse than burning coal or oil.
Methane has 105 times the warming potential of CO2 over a 20-year time frame, after which it rapidly loses its warming potential. If large amounts of methane are released through fracking – as seems likely with hundreds of thousands of new wells forecast in the next two decades – Howarth says global temperatures could rocket upward from 0.8C currently to 1.8C in 15 to 35 years, running the risk of triggering a tipping point that could lead to catastrophic climate change.
“Our primary concern is that methane emissions over the coming two decades will drive the entire climate system past a major tipping point,” he told IPS.
A study by the U.S. National Center for Atmospheric Research (NCAR) last September also concluded that methane leaks meant that natural gas provided little advantage over using coal. Even if leaks are one to two percent, far less than the Howarth estimates, it would only be slightly better than continuing to burn coal, the “Coal to gas: the influence of methane leakage” study concluded.
Fracking involves drilling vertically 500 to 3,000 metres into gas- bearing shale rock and then horizontally for 1,000 metres or more along the shale formation. Then chemicals and large amounts of water are pumped underground at high enough pressure to fracture the shale, releasing the gas into the pipeline.
The first uses of hydraulic fracturing were in Texas in the early 1990s, but were very limited. However, new technologies developed in the last eight years have made it possible to get at deep, widely dispersed deposits of gas.
The George W. Bush administration’s 2005 Energy Policy Act exempted fracking from regulations under the U.S. Clean Water Act, clearing the way for the shale gas gold rush. In recent years, shale gas production has grown 48 percent per year, according to the U.S. Energy Information Administration.
There are now an estimated 400,000 wells in the continental U.S. and tens of thousands more planned in the next year or two. Public concern has risen over water and air pollution, water shortages, disruption of rural neighbourhoods, and even earthquakes.
Ohio halted fracking this month in one part of the state after a series of small earthquakes were linked to injecting fracking wastes underground. Fracking a well requires injecting 10 to 15 million litres of water and 200,000 litres of chemicals and the resulting wastewater is often too contaminated to be reused and is pumped deeper underground or left in wastewater ponds.
Although the gas industry long denied that fracking contaminates drinking water wells and aquifers, hundreds of claims have been made over the years. However, very little independent research has been done.
Last year, researchers at Duke University looked at 68 fracking sites and found groundwater with methane concentrations 17 times higher than in wells located where fracking was not taking place. Some of the levels were higher than “immediate action” hazard levels.
Last year, the U.S. Environmental Protection Agency (EPA) finally began to conduct its first in-depth study of the risks to drinking water. Preliminary results released late last year revealed drinking water contaminated by benzene, a known carcinogen and one of the chemicals used in fracking.
From a climate perspective, shale gas is certainly worse than conventional gas, said Zeke Hausfather, an energy expert at Efficiency 2.0 in New York, which works with power utilities. However, Hausfather disputes Howarth’s findings that shale is worse than coal since the latter emits more CO2 and while methane has a life of only 10 years in the atmosphere, CO2 stays for thousands of years.
“There is a lot of uncertainty about methane leakage and much of it is based on estimates,” Hausfather told IPS.
Howarth’s range is on the high side, with his upper estimate of 7.9 percent, 400 percent higher than estimates for conventional gas leakage, he said. However, reducing methane leakage from shale gas is an important issue that regulators should address.
In the face of strong industry resistance, the EPA has proposed regulations to require capture of methane at the time of well completion. Regulations are necessary since economic considerations alone have not driven such reductions, said Anthony Ingraffea of Cornell University and one of Howarth’s co-authors.
However, plugging the methane leaks downstream from the wellhead in transmission pipelines, compressor stations, and decades-old distribution pipelines under the streets of cities and towns throughout the U.S. and Canada would be extraordinarily expensive, Ingraffea said.
“Would the capital be better spent on constructing a smart electric grid and other technologies that move towards a truly green energy future?” he asked.
First published as Shale Gas a Bridge to More Global Warming – IPS ipsnews.net.
My earlier article on this topic:
(Copyright 2012/2013 Stephen Leahy)
This independent journalism depends on public support. Click here learn more.
I said further words from me would be superfluous. Therefore, instead, I would like to recommend these words from Paul Handover - of Learning from Dogs fame - which include a summary of some of the most significant projections of the new US National Climate Assessment (report issued in draft for public comment); and some wise words also from Grist blogger David Roberts.
Thanks to Twitter, I was alerted to an online discussion on the Guardian website yesterday, prompted by statements of opinion by Mark Lynas (freelance journalist/author) and Dr David Santillo (Greenpeace Scientist).
As discussed with a commenter on this blog (Lionel) yesterday, I decided to get involved; and to try and contact Dr Santillo personally, via email:
Dear Dr Santillo,
Re: The discussion on the Guardian website today regarding Fracking
I am 100% opposed to fracking; but I think Greenpeace should move on from discussing the possible immediate environmental risks of doing it. Hence the comment that I posted earlier.
When will environmentalists stop arguing about whether fracking is inherently dangerous (because of its immediate and localised impacts when poorly engineered and/or executed)… and start focusing on the fact that it is intrinsically dangerous (because we need to stop finding evermore esoteric and unconventional fossil fuel sources to exploit)…?
Apart from this, whilst I would not want to condone the way in which at least one commenter on the Guardian website today has questioned the relevance of your background, this does beg the question as to whether Greenpeace could make use of someone with my qualifications and experience?
Yours hopefully, etc..
Having failed to get a response, I telephoned Greenpeace today, and was referred to a Press Release published on their website yesterday, which is indeed very interesting – because it includes information obtained via Freedom of Information (FOI) requests. ‘Greenpeace on lifting of fracking moratorium’ is worth reading in full but, if you are short of time, here are the highlights:
- Fracking is a dangerous fantasy.
- Just because it may be viable in the US does not mean it will be viable here.
- Energy analysts agree that shale gas will do little or nothing to lower bills.
- It is a massive gamble and consumers and the climate will end up paying the price.
Greenpeace FOI requests have established that, as early as last Spring, the Environment Agency issued a high-level briefing to the Prime Minister regarding their concerns of threats to drinking water near proposed fracking sites in Sussex. Clearly, such concerns have been trumped by the climate change sceptics and/or economic rationalists in the Conservative Party.
A full Greenpeace briefing on fracking can be found here: http://www.greenpeace.org.uk/document/shale-gas-silver-bullet.
UPDATE: 17 Dec 2012 – Greenpeace UK also advised me to keep an eye on their Energydesk page – for updates on all things related to UK energy policy.