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The Independent has an article on "radical gardening" (as opposed to "guerilla gardening) - Radical plots: The politics of gardening. Watch out for those old folk pottering around their back yards...

Notions of utopia, of community, of activism for progressive social change, of peace, of environmentalism, of identity politics, are practically worked through in the garden, in floriculture and through what art historian Paul Gough has called "planting as a form of protest". But not all – some are sobering, or frightening, for within the territory of the politically "radical" there have been, and continue to be, social experiments that invert our positive expectations of the human exchange that occurs in the green open space of a garden. There are fascist gardens (for the Nazis the land and its planting were pivotal to their ideology): the notorious herb garden at Dachau concentration camp (run on the biodynamic principles of Rudolf Steiner which were favoured by many senior Nazis); the SS "village" at Auschwitz, as recalled by Primo Levi, with its domestic normality of houses, gardens, children and pets – and the garden paths paved with human bones.

There are also contemporary troubles: the British National Party, for example, has a campaign website entitled Land and People (not such a distant echo in its title of the Nazi Blood and Soil doctrine): "Land and People say the choice between allocating land for locals – utilise as allotments – or for development – building to house migrants – as they say, a no brainer... only British Nationalists will put the engine of immigration into reverse and, in so doing, save our countryside."

The BNP has also argued for the planting of old English varieties of apple trees as part of its campaign to preserve a pure and rustic national culture. In spite of being neither English nor a nationalist, I have planted a "lost" local heritage apple tree in my Lancashire garden (it doesnt fruit as much as the Bramley bought end-of-season from B&Q for a fiver, thus probably explaining why it was lost). But nonetheless, can we say that the discourse of horticultural purity and nativism – and even more so of native vs invasive species – maps uncomfortably on the politics of extreme nationalism and xenophobia?

Any notions of a horti-countercultural politics (I agree that they probably dont called them horti-countercultural politics) that gardeners may have imagined were in their earthy practice and pleasure have a rich and challenging tradition, a significance and a trajectory of energy and import that makes them matter for our future. "Why," asks writer-gardener Jamaica Kincaid, "must people insist that the garden is a place of rest and repose, a place to forget the cares of the world, a place in which to distance yourself from the painful responsibility with being a human being?"

Kincaid and other writers – like Gough, Martin Hoyles and Kenneth Helphand – have helped shape my own understanding of the garden as a place that actually confronts and addresses the cares of the world. Helphands Defiant Gardens: Making Gardens in Wartime in particular, a study of gardens in the most unlikely of wartime settings (such as planted by troops in First World War trenches or in Jewish ghettos), with a stunning set of archive images from military and holocaust museums, made me completely rethink what might be definable as a garden.

This isnt a forced juxtaposition of plant and ideology. Think only of the English radical writer William Cobbett, who declared in 1819 that "if I sowed, planted or dealt in seeds, whatever I did had first in view the destruction of infamous tyrants". Or the early 20th-century revolutionary playwright Bertolt Brecht, who observed, with startling accusatory power, that "famines do not occur, they are organised by the grain trade". Or the Peace Pledge Unions white anti-war poppy, or the 1960s hippie placing a flower down the barrel of the National Guardsmans rifle. Or the female Colombian activist speaking recently to Western buyers on behalf of the 40,000 women working in the pesticidal Colombian flower industry: "Behind every beautiful flower is a death. Flowers grow beautiful while women wither away." Or street artist Banksy, whose most famous images include the masked rioter throwing not a petrol bomb, but a bunch of flowers. These horticultural snapshots illustrate a compelling and enduring connection between plant and politic, a radical gardening.

In his recent book, Nowtopia, Chris Carlsson writes of a politics inscribed in the very act of "slowing down the gardener, making her pay attention to natural cycles that only make sense in the full unfolding of seasons and years. In a shared garden [especially], time opens up for conversation, debate and a wider view than that provided by the univocal, self-referential spectacle promoted by the mass media".

Climate change, peak oil transition, community cohesion, the environment, genetic modification and food policy, diet, health and disability – the garden is the local patch which touches and is touched by all of these kinds of major global concerns, whether it wants that kind of attention or not. In a sparkling collection of autonomous essays from a decade ago called Avant Gardening, Peter Lamborn Wilson comments wryly that "cultivate your own garden sounds today like hot radical rhetoric. Growing a garden has become – at least potentially – an act of resistance. But its not simply a gesture of refusal. Its a positive act".

BG and QGC have had to suspend construction of the coal seam gas pipeline to their planned LNG plant due to some of their environmental management plans not being approved. The story has highlighted the sorry practice in some media outlets of simply reprinting company press releases - Nice bit of gas-powered churnalism.

There’s a new service over in the UK set up by the Media Standards Trust which allows the public to check for cases of “Churnalism”.

Churnalism, says the trust, is “a news article that is published as journalism, but is essentially a press release without much added”.

Using the free Churnalism website, you can paste text from a press release into a box. The service then goes off and finds any news articles that resemble the text of the press release – articles suspected of being “churn”.

The site lets you see the press release placed side-by-side against the original and gives a percentage of how much of the release was cut-and-pasted and how many characters overlap.

In the last few days, they’ve added a service where you can do this exercise in reverse and search news outlets against press releases from some companies and government agencies.

For example, the site suspects that in the last three years 495 articles in The Guardian online may be churn. The Daily Mail online scores more than 700.

Now obviously, there are lots of occasions when there’s nothing at all wrong with a press release being churned. The trust points out that

“Some press releases are clearly in the public interest (medical breakthroughs, government announcements, school closures and so on). But even in these cases, it is better that people should know what press release the article is based on than for the source of the article to remain hidden.”

Unfortunately,the site is only available in the UK but you can rest assured there’s plenty of churnalism that goes on in Australia too (If in any doubt, go check out Crikey’s Spinning the Media series from last year, which found over half of the news in Australia came from public relations). Some of it is harmless, but some of it is clearly not.

Which brings me to a recent article which appeared online in the Gladstone Observer and an almost identical story which appeared online in the Toowoomba Chronicle – both news sites owned by APN News & Media.

The story reported how the Queensland Gas Company had stopped work on clearing land for a coal seam gas pipeline because “environmental plans for soil and species management have not been approved”, the report said. A serious issue no doubt and well worth the time of an APN journalist in reporting it. After all, QGC has reported it is spending $15 billion on the project which the delay was part of.

There were quotes from “QGC senior vice president Jim Knudsen” who explained the company didn’t believe their work so far had caused any ”adverse impact on protected plants and animals”.

I asked QGC if they had issued a press release into the incident. They said they had and they sent me a copy. It’s now here online. Well, you’ve guessed the rest.

The story on the Towoomba site was almost identical to the press release, with only 5 words of the original 251-word press release changed. They didn’t even bother to write their own headline. “QGC stops work on pipeline”.

The Gladstone Observer story was identical, except for the addition of a 13 word intro popped on the top of the text. The rest of the story was a complete and unchanged cut-and-paste from the QGC release.

Why am I worried about this? Because a news outlet should not be just a distribution service for a major corporation, especially one which is drilling 6000 wells and laying more than 700 kilometres of pipeline in the areas being served by the news outlet.

I know regional newspapers have resources issues but surely its online readers should have been made aware that the story printed on its website was just a cut-and-pasted press release?

Good on QGC for admitting the breach, but you can only hope that the print versions of the Gladstone Observer and the Toowoomba Chronicle do better.

The Independent has a report on discussions between the British government and BP in the lead up to the Iraq war - Secret memos expose link between oil firms and invasion of Iraq. Hands up if you are surprised by this. More at Empty Wheel and Patrick Cockburn at The Independent - They denied it was about Iraqs resources. But it never rang true, along with another article at The Indy on Iraqs "untapped potential" - Black gold rush was fuelled by enormous untapped potential.

Plans to exploit Iraqs oil reserves were discussed by government ministers and the worlds largest oil companies the year before Britain took a leading role in invading Iraq, government documents show.

The papers, revealed here for the first time, raise new questions over Britains involvement in the war, which had divided Tony Blairs cabinet and was voted through only after his claims that Saddam Hussein had weapons of mass destruction.

The minutes of a series of meetings between ministers and senior oil executives are at odds with the public denials of self-interest from oil companies and Western governments at the time.

The documents were not offered as evidence in the ongoing Chilcot Inquiry into the UKs involvement in the Iraq war. In March 2003, just before Britain went to war, Shell denounced reports that it had held talks with Downing Street about Iraqi oil as "highly inaccurate". BP denied that it had any "strategic interest" in Iraq, while Tony Blair described "the oil conspiracy theory" as "the most absurd".

But documents from October and November the previous year paint a very different picture.

Five months before the March 2003 invasion, Baroness Symons, then the Trade Minister, told BP that the Government believed British energy firms should be given a share of Iraqs enormous oil and gas reserves as a reward for Tony Blairs military commitment to US plans for regime change.

The papers show that Lady Symons agreed to lobby the Bush administration on BPs behalf because the oil giant feared it was being "locked out" of deals that Washington was quietly striking with US, French and Russian governments and their energy firms.

Minutes of a meeting with BP, Shell and BG (formerly British Gas) on 31 October 2002 read: "Baroness Symons agreed that it would be difficult to justify British companies losing out in Iraq in that way if the UK had itself been a conspicuous supporter of the US government throughout the crisis."

The minister then promised to "report back to the companies before Christmas" on her lobbying efforts.

The Foreign Office invited BP in on 6 November 2002 to talk about opportunities in Iraq "post regime change". Its minutes state: "Iraq is the big oil prospect. BP is desperate to get in there and anxious that political deals should not deny them the opportunity."

After another meeting, this one in October 2002, the Foreign Offices Middle East director at the time, Edward Chaplin, noted: "Shell and BP could not afford not to have a stake in [Iraq] for the sake of their long-term future... We were determined to get a fair slice of the action for UK companies in a post-Saddam Iraq."

Whereas BP was insisting in public that it had "no strategic interest" in Iraq, in private it told the Foreign Office that Iraq was "more important than anything weve seen for a long time".

BP was concerned that if Washington allowed TotalFinaElfs existing contact with Saddam Hussein to stand after the invasion it would make the French conglomerate the worlds leading oil company. BP told the Government it was willing to take "big risks" to get a share of the Iraqi reserves, the second largest in the world.

Over 1,000 documents were obtained under Freedom of Information over five years by the oil campaigner Greg Muttitt. They reveal that at least five meetings were held between civil servants, ministers and BP and Shell in late 2002.

The 20-year contracts signed in the wake of the invasion were the largest in the history of the oil industry. They covered half of Iraqs reserves – 60 billion barrels of oil, bought up by companies such as BP and CNPC (China National Petroleum Company), whose joint consortium alone stands to make £403m ($658m) profit per year from the Rumaila field in southern Iraq.

Last week, Iraq raised its oil output to the highest level for almost decade, 2.7 million barrels a day – seen as especially important at the moment given the regional volatility and loss of Libyan output. Many opponents of the war suspected that one of Washingtons main ambitions in invading Iraq was to secure a cheap and plentiful source of oil.

Our discussion of algebraic number theory returns by popular demand. Way back last April we presented some generalities on factorization of prime ideals in extension fields. (For explanation of what that means, including other necessary concepts, youll have to review earlier installments of this series, which can be found here.)

If this is all Greek to you, I apologize, but thats unavoidable at this stage of a rather technical subject. You may want to go back to the earliest parts of the series to see how the subject got its start and why it may be interesting.

The discussion in the previous installment probably seems rather dry and abstract, but when we look at simple examples, such as quadratic extensions, why its interesting becomes clearer.

Because of how the ramification indexes and inertial degrees are related, for any prime ideal (p) of ℤ there are only three different possibilities for how the ideal factors in the ring of integers of a quadratic extension:

1. (p)=P₁⋅P₂, so (p) splits completely. (e=f=1, g=2)
   
2. (p)=P is a prime ideal in ℚ(√d), so p is inert. (e=g=1, f=2)
   
3. (p)=P² where P is prime, and p is ramified. (f=g=1, e=2)
   

It turns out that there are simple criteria for each of these cases. But figuring out what the criteria are is tricky.

Recall that in ℚ(√3) we found (13)=(4+√3)⋅(4-√3) and (-11)=(8+5√3)⋅(8-5√3), so both (11) and (13) split completely. Clearly, (3)=(√3)², so (3) is an example of a prime ideal if ℤ that is ramified. How about an example of a prime ideal that is inert in the extension? This is a little harder for a couple of reasons. (p) will be inert just in case it neither splits nor is ramified, but we dont yet have simple criteria to rule out those cases.

So lets back up a little and look at the details. We found examples where (p) splits in the integers of ℚ(√3) by solving the equation ±p=a²-3b², because that gave elements a±b√3 whose norm was ±p. Being able to find such elements guaranteed that the prime split. But ℚ(√d) with d=3 is a special case, since here d≡3 (mod 4). In that case, and also if d≡2 (mod 4), the integers of the extension have the form a+b√d with a,b∈ℤ.

If d≡1 (mod 4), integers can also have the form (a+b√d)/2, with a,b∈ℤ, and we might have a factorization like (p) = ((a+b√d)/2)⋅((a-b√d)/2), so we would have also to consider solvability of ±4p=a²-3b². If we were to look at solvability of the approriate equation, according as to whether or not d≡1 (mod 4), the solvability would be a sufficient condition for (p) to split (or ramify if a=0). Notice that this sufficient condition for (p) to split holds regardless of whether or not ℚ(√d) is a PID.

Now we need to find a convenient necessary condition for (p) to split. Unfortunately, solvability of one simple equation is not a necessary condition in general. It would be, as well see in a minute, if the ring of integers of ℚ(√d) happens to be a PID, as is true when d=3. However, in quadratic extensions where the ring of integers isnt a PID, being unable to solve the applicable equation doesnt guarantee (p) cannot split, because there might be non-principal ideals that are factors of (p).

So lets ignore that problem for a moment and just focus on the case where the ring of integers of ℚ(√d) is a PID. Can we then find a necessary condition on p for (p) to split or ramify, i. e. for (p) to not be a prime ideal of the integers of ℚ(√d)? That is, what must be true about p if (p) splits or ramifies?

If (p) splits or ramifies, then (p)=P₁⋅P₂ for nontrivial ideals P_i. (The ideals are the same or distinct according as (p) ramifies or splits.) Assuming ℚ(√d) is a PID, then P₁ is generated by a+b√d where both a,b∈ℤ, if d≡2 or 3 (mod 4), or else by (a+b√d)/2 with a,b∈ℤ, if d≡1 (mod 4). Likewise, the conjugate ideal P₂ is generated by a-b√d or (a-b√d)/2. Since p∈P₁⋅P₂, by definition of a product of ideals, p is of the form p = ε(a+b√d)(a-b√d) = ε(a²-db²) or p = ε(a+b√d)(a-b√d)/4 = ε(a²-db²)/4 for some integer ε of ℚ(√d).

Recall that the norm of an element of a Galois extension field is the product of all conjugates of the element. So for an element that is also in the base field, the norm (with respect to a quadratic extension, which is always Galois) is the square of the element. Taking norms of both sides of the possible equations, then either p² = N(&epsilon)(a²-db²)² or 16p² = N(&epsilon)(a²-db²)². For simplicity, consider just the first case. Then N(ε) is a positive integer that has to be 1, p, or p². If N(ε)≠1 then N(a±b√d) = a²-db² must be ±1, so a±b√d must be a unit, and both P_i must be non-proper ideals (i. e. equal to the whole ring). Hence N(ε)=1. This will be true also in the other case (when d≡1 (mod 4)), so ±p=a²-db² or ±4p=a²-db². Consequently, solvability of the appropriate equation (depending on d mod 4), is a necessary condition for (p) to split or ramify.

So we have a necessary and sufficient condition for (p) to split or ramify in ℚ(√d), in terms of solvability of Diophantine equations, provided O_ℚ(√d) is a PID. Since the only other possibility is for (p) to be inert, we also have a necessary and sufficient condition for that.

However, still assuming that O_ℚ(√d) is a PID, we can find a further necessary condition for (p) to split or ramify. Take those equations we just found and reduce them modulo p. Then both equations become a²≡db² (mod p). Since p is prime, ℤ/pℤ is a field. Assume first that b≢0 (mod p). Then b has an inverse in the finite field. So we have d≡(a/b)² (mod p). In other words, d is a square mod p. This is the additional necessary condition we were looking for on p in order for (p) to split or ramify. Since its a necessary condition, if d is not a square mod p, then (p) must not split or ramify, and thus p is inert. And so, for d to be a non-square mod p is a sufficient condition for p to be inert.

(What if b≡0 (mod p)? Then b=b₁p. So ±p = a² - (b₁p)²d or else ±4p = a² - (b₁p)²d. Either way, p∣a, hence p² divides the right side of either equation, and hence the left side also. But thats not possible unless p=2 – which is always a special case.)

To summarize, then, let p≠2 be prime and d square-free and not 0 or 1. Then the solvability of ±tp=a²-db² (where t is 4 or 1 according as d≡1 (mod 4) or not), is sufficient for (p) to split or ramify. And if the integers of ℚ(√d) are a PID, then solvability of the appropriate equation provides a necessary and sufficient condition for (p) to split or ramify. Further, in that case, d being a square mod p is necessary for (p) to split or ramify.

Remarkably, d being a square mod p is a necessary and sufficient condition for (p) to split or ramify, even if the integers of ℚ(√d) arent a PID, but thats harder to prove. Since solvability of Diophantine equations is generally not obvious by inspection, its very convenient to have a necessary and sufficient conditions for (p) to split or ramify simply in terms of the properties of d mod p.

In the next installment, which hopefully will not be as long in coming as this one, well show a much cleaner way to state necessary and sufficient conditions for (p) to split, ramify, or remain inert, in the case of any quadratic extension of ℚ, whether or not the ring of integers is a PID. This will be done in terms of what has long been called a "reciprocity law".

However, that will be only the beginning. It turns out that there are far more general kinds of reciprocity laws for many other types of field extensions. Thats what "class field theory" is all about, and why the whole subject is so appealing, once you get the basic ideas.

Tags: algebraic number theory

NASAs Spitzer Peels Back Layers of Stars Explosion

Astronomers using NASAs infrared Spitzer Space Telescope have discovered that an exploded star, named Cassiopeia A, blew up in a somewhat orderly fashion, retaining much of its original onion-like layering.

Cassiopeia A – click for 800×800 image

Cassiopeia A, or Cas A for short, is what is known as a supernova remnant. The original star, about 15 to 20 times more massive than our sun, died in a cataclysmic "supernova" explosion relatively recently in our own Milky Way galaxy. Like all mature massive stars, the Cas A star was once neat and tidy, consisting of concentric shells made up of various elements. The stars outer skin consisted of lighter elements, such as hydrogen; its middle layers were lined with heavier elements like neon; and its core was stacked with the heaviest elements, such as iron.

Earlier (2004) press release on Cassiopeia A, with images: Deepest Image of Exploded Star Uncovers Bipolar Jets



Tags: astrophysics, supernova, black hole, Cassiopeia A

The UK Daily Telegraph has a jaundiced look at the shale boom - Shale gas: The dotcom bubble of our times.

Rather oddly, hardly anyone seems to have asked the one question which is surely fundamental: does shale development make economic sense?

My conclusion is that it does not.

That Britain needs new energy sources is surely beyond dispute. Between 2003 and 2013, domestic production of oil and gas slumped by 62pc and 65pc respectively, while coal output decreased by 55pc. Despite sharp increases in the output of renewables, overall energy production has fallen by more than half. A net exporter of energy as recently as 2003, Britain now buys almost half of its energy from abroad, and this gap seems certain to widen. ...

We now have more than enough data to know what has really happened in America. Shale has been hyped ("Saudi America") and investors have poured hundreds of billions of dollars into the shale sector. If you invest this much, you get a lot of wells, even though shale wells cost about twice as much as ordinary ones.

If a huge number of wells come on stream in a short time, you get a lot of initial production. This is exactly what has happened in the US. The key word here, though, is "initial". The big snag with shale wells is that output falls away very quickly indeed after production begins. Compared with “normal” oil and gas wells, where output typically decreases by 7pc-10pc annually, rates of decline for shale wells are dramatically worse. It is by no means unusual for production from each well to fall by 60pc or more in the first 12 months of operations alone.

Faced with such rates of decline, the only way to keep production rates up (and to keep investors on side) is to drill yet more wells. This puts operators on a "drilling treadmill", which should worry local residents just as much as investors. Net cash flow from US shale has been negative year after year, and some of the industry’s biggest names have already walked away.

The seemingly inevitable outcome for the US shale industry is that, once investors wise up, and once the drilling sweet spots have been used, production will slump, probably peaking in 2017-18 and falling precipitously after that. The US is already littered with wells that have been abandoned, often without the site being cleaned up. Meanwhile, recoverable reserves estimates for the Monterey shale – supposedly the biggest shale liquids play in the US – have been revised downwards by 96pc. In Poland, drilling 30-40 wells has so far produced virtually no worthwhile production.

In the future, shale will be recognised as this decades version of the dotcom bubble. In the shorter term, its a counsel of despair as an energy supply squeeze draws ever nearer. While policymakers and investors should favour solar, waste conversion and conservation over the chimera of shale riches, opponents would be well advised to promote the economic case against the shale fad.

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I watched the second episode of "All watched over by machines of loving grace" today and found it interesting but mildly annoying.

Id noted the parallels in the first episode to Fred Turners book "From Counterculture To Cyberculture", so I wasnt particularly surprised to see Turner make an appearance in this episode, along with Stewart Brand, and the tracing of these ideas back to Bucky Fuller.

What was new about this episode was the repeating of common misconceptions about "The Limits To Growth" and the strange line of reasoning that seemed to argue that the search for "equilibrium" (ie. a scenario where our overall impact on the environment is trimmed to the point where we dont end up having the population crash as we overwhelm the planets carrying capacity) that "Limits" undertakes is really arguing for a form of political stasis where no radical change is to be contemplated.

While this may have been a goal of the Technocrats that preceded them, it doesnt ring true for the systems theorists.

Curtis even notes that Jay Forrester and the "Limits" crew explicitly said they werent considering politics, but discounts this as a form of dishonesty rather than accepting that the book is just outlining scenarios around resource consumption, population and pollution rather than being a political manifesto (which would have been entirely counterproductive).

Where is does veer towards politics (in the section entitled "Transitions to a sustainable system", where it prescribes the changes required to make our global economy sustainable), the practices recommended are both positive and a change from the general status quo today - it doesnt read like a manual for perpetuating elite control and forbidding political change, with the non-technical recommendations including :

* poverty reduction
* nonviolent conflict resolution
* accurate/unbiased media
* “decentralisation of economic power, political influence and scientific expertise”
* “stable populations” and “low birth rates” by “individual choice”

Curtis main point (like Turners before him) - that the counterculture / hippie / cyberculture ideal of a world without politics is a fantasy - is valid, but he really goes off the rails trying to blame the systems theorists and ecologists for the problems of the world today.

The section about the colour revolutions in eastern europe, in particular, seemed wildly off base - he assumes that this genuinely was a case of leaderless uprising spontaneously organised via network culture - when instead they were orchestrated from the US to expand western influence at the expense of the Russians - and naturally enough faltered once the population realised that their interests werent really being advanced at all by the changes (just as well most likely see with the current "Arab Spring" equivalent).

One of the things thats always fascinating (or inspiring, astonishing, awe-inspiring – take your pick) about what we learn from the evolutionary history of living critters is how much very different sorts of living things have in common. This even reaches down to the level of single cells, where very similar genes can be found in mammals and yeast, even bacteria.

We also find complex subsystems with substantial similarities. So much so that the nervous system of the roundworm Caenorhabditis elegans, which has all of 302 neurons in its whole nervous system (hermaphrodite version), is routinely used as an experimental model for the nervous systems of much more complex animals.

Perhaps even more astonishing than that, however, is that it now appears some genes important for modern nervous systems existed even before there were nervous systems – in sea sponges, which are just about the most primitive animals known.

Origins Of Nervous System Found In Genes Of Sea Sponge

Scientists at the University of California, Santa Barbara have discovered significant clues to the evolutionary origins of the nervous system by studying the genome of a sea sponge, a member of a group considered to be among the most ancient of all animals.

And not only are some of the genes there, but the proteins they represent may have interacted similarly to the way that corresponding proteins interact in modern synapses.

"It turns out that sponges, which lack nervous systems, have most of the genetic components of synapses," said Todd Oakley, co-author and assistant professor in the Department of Ecology, Evolution and Marine Biology at UC Santa Barbara.

"Even more surprising is that the sponge proteins have signatures indicating they probably interact with each other in a similar way to the proteins in synapses of humans and mice," said Oakley. "This pushes back the origins of these genetic components of the nervous system to at or before the first animals ---- much earlier than scientists had previously suspected."

Other blog articles: here

Original research paper: here

Tags: synapses, neuroscience

ReNew Economy has a report on research that may result in a massive tax bill for the coal seam gas industry - Gas industry rattled by findings of triple normal levels of methane.

LEVELS of the potent greenhouse gas methane have been recorded at more than three times their normal background levels at coal seam gas fields in Australia, raising questions about the true climate change impact of the booming industry.

The findings, which have been submitted both for peer review and to the Federal Department of Climate Change, also raise doubts about how much the export-driven coal seam gas (CSG) industry should pay under the country’s carbon price laws.

Southern Cross University (SCU) researchers Dr Isaac Santos and Dr Damien Maher used a hi-tech measuring device attached to a vehicle to compare levels of methane in the air at different locations in southern Queensland and northern New South Wales. The gas industry was quick to attack their findings and the scientists themselves.

The Queensland government has already approved several major multi-billion dollar CSG projects worth more than $60 billion, all of which are focussed on converting the gas to export-friendly liquefied natural gas (LNG).

More than 30,000 gas wells will be drilled in the state in the coming decades and the industry has estimated between 10 per cent and 40 per cent of the wells will undergo hydraulic fracturing.

The industry and state and federal ministers have claimed that electricity derived from coal seam gas will help slow growth in carbon emissions but, so far, no comprehensive independent lifecycle assessment of emissions has been carried out.

Last August, a Right to Information request submitted by me and reported in the Brisbane Times revealed that the state’s government was prepared to rely on industry-funded research when it came to understanding the industry’s carbon footprint.

A later report from the Australian Petroleum Production and Exploration Association, which looked at emissions from CSG when burned for electricity in China, was produced by Worley Parsons, a company which had won a $580 million contract to work on a major CSG-to-LNG project in the state.

The Federal Energy Minister Martin Ferguson has also waved away suggestions that the government should commission its own independent research into CSG emissions, and was reported as saying such a study was “unnecessary”.

The work at Southern Cross University is arguably the first attempt to independently measure levels of methane coming from gasfield areas.

Dr Santos said in a university release: “The current discussions on CSG are often based on anecdotal evidence, old observations not designed to assess CSG or data obtained overseas. We believe universities are independent institutions that should provide hard data to inform this discussion. The lack of site-specific baseline data is staggering.”

In an interview with the Australian Broadcasting Corporation, Dr Maher said while it was not possible yet to say “definitively” that the raised levels of methane were due to leaks from the CSG facilities, “we have multiple lines of evidence to suggest that that is what is causing it”. He said the initial findings pointed to the CSG operations as a likely source of the raised methane levels – in particular, from “fugitive emissions.

I saw a demo of a desktop 3D printer today from 3D Printing Systems which I thought was worthy of a brief post.

The printer produces items up to about 14 cm wide in each dimension, using rolls of ABS plastic as the input material (hopefully one day a suitable bioplastic input will be available in the not too distant future). At around A$3,500 for the printer it seemed relatively affordable (industrial scale equivalents cost around $2.3 million). The printer accepts STL format models, so they can be created in Google Sketchup, Solidworks etc.

The advent of cheap 3D printing is appearing in the mainstream media now, which makes me wonder if it is on the verge of takeoff - thus enabling distributed manufacturing of a range of goods (albeit of pretty low quality at this point).

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The growing energy demands of the urban and rural areas of the developing and developed nations can be met by the use of conventional energy resources as well as the alternative energy sources. It is known that the use of both types of energy sources side by side is the only effective means of fulfilling the energy requirements.

The various conventional sources of energy are coal, petroleum and natural gas. The alternative energy sources that are known to the mankind are solar energy, tidal energy, wind energy, geothermal energy, thunder bolt energy etc.

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The Reserve Bank has an interesting analysis of how crude oil is priced in world markets - The Pricing of Crude Oil.

Arguably no commodity is more important for the modern economy than oil. This is true in terms of both production and financial market activity. Yet its pricing is relatively complex. In part this reflects the fact that there are actually more than 300 types of crude oil, the characteristics of which can vary quite markedly. This article describes some of the key features of the oil market and then discusses the pricing of oil, highlighting the important role of the futures market. It also notes some related issues for the oil market. ...

The crude oil market is significantly larger than that for any other commodity, both in terms of physical production and financial market activity (Table 1).

The value of crude oil production is more than twice that of coal and natural gas, 10 times that of iron ore and almost 20 times that of copper. Crude oil is the most widely used source of fuel, supplying around one-third of the world’s energy needs. It is also used to produce a variety of other products including plastics, synthetic fibres and bitumen. Accordingly, changes in the price of crude oil have far-reaching effects.

The pricing mechanism underlying crude oil is, however, not as straightforward as it might appear. Almost all crude oil sold internationally is traded in the ‘over-the-counter’ (OTC) market, where the transaction details are not readily observable. Instead, private sector firms known as price reporting agencies (PRAs) play a central role in establishing and reporting the price of oil – the two most significant PRAs being Platts and Argus Media. ...

While physical crude oil can be purchased from organised exchanges by entering into a futures contract, only around 1 per cent of these contracts are in fact settled in terms of the physical commodity. Futures contracts are standardised contracts traded on organised exchanges, specifying a set quantity (usually 1 000 barrels) of a set type of crude oil for future delivery. The two key oil futures contracts are the New York Mercantile Exchange (NYMEX) WTI light sweet crude and the Intercontinental Exchange (ICE) Brent contracts. ...

With so many different grades of oil, there is actually no specific individual market price for most crude oils. Instead, prices are determined with reference to a few benchmark oil prices, notably Brent and West Texas Intermediate (WTI) (Graph  3). Brent is produced in the North Sea and is used as a reference price for roughly two-thirds of the global physical trade in oil, although it only accounts for around 1 per cent of world crude oil production (Table 3). WTI is produced in the United States and has traditionally dominated the futures market, accounting for around two-thirds of futures trading activity. However, futures market trading in Brent has increased significantly in recent years to be now close to that for WTI, reinforcing Brent’s role as the key global benchmark (Graph 4). As discussed below, Brent’s dominance as a benchmark has benefited from the fact that it is a seaborne crude and, unlike WTI (which is a landlocked pipeline crude), can readily be shipped around the world.

These benchmarks form the basis for the pricing of most contracts used to trade oil in the physical (and financial futures) markets. For oil transactions undertaken in the spot market, or negotiated via term contracts between buyers and sellers, contracts specify the pricing mechanism that will be used to calculate the price of the shipment. So-called ‘formula’ pricing is the most common mechanism, and it anchors the price of a contracted cargo to a benchmark price, with various price differentials then added or subtracted. These price differentials relate to factors such as the difference in quality between the contracted and benchmark crude oils, transportation costs and the difference in the refinery’s return from refining the contracted and benchmark crudes into the various petroleum products. For example, a barrel of Brent is generally worth more than a barrel of Dubai (a  medium sour crude oil) because Brent will yield more high-value gasoline, diesel and jet fuel than Dubai without the need for intensive refining. However, the actual magnitude of the Brent-Dubai spread will depend on the relative prices of these petroleum products at the time when the oil is sold to the refineries, along with the location and the spare capacity in those refineries that can easily convert lower-quality crude oil into higher-yielding petroleum products. Reflecting changes in these fundamental determinants, the Brent-Dubai spread has fluctuated within a range of around US$0–15 per barrel. These benchmark prices used in formula pricing are usually based on either (i) ‘spot’ prices determined by PRAs (for example, a ‘spot’ price published by Platts called Dated Brent); or (ii) prices determined in futures markets (for example, the assessed WTI price published by the PRAs).

Oil companies often reference more than one benchmark price depending on the final destination; for example, Saudi Aramco typically employs the Brent benchmark to price oil exports to Europe, Dubai-Oman for exports to Asia and the Argus Sour Crude Index for exports to the United States. These particular crudes emerged as benchmarks due to several distinctive characteristics. Brent developed as a benchmark owing to favourable tax regulations for oil producers in the United Kingdom, in addition to the benefits of stable legal and political institutions (Fattouh 2011). Ownership of Brent crude oil is well diversified, with more than 15 different companies producing it, which helps to reduce individual producers’ pricing power.

Brent can also be used by a variety of buyers, given that it is a light sweet crude oil that requires relatively little processing. The physical infrastructure underlying Brent is also well developed. When the Brent benchmark was established in the mid 1980s, its production was initially reasonably large and stable, which is an important characteristic of a benchmark as it guarantees timely and reliable delivery. Although the volume of Brent crude oil produced has declined over time, three other North Sea crudes have been added to the Brent benchmark basket over the past decade, such that it now comprises Brent, Forties, Oseberg and Ekofisk (BFOE; Graph  5). The combination of these four alternatively deliverable grades has allowed the Brent benchmark to retain a reasonable volume of production. And while there are concerns about the adequacy of production volumes in the future, the depth and liquidity of the Brent futures market has nevertheless increased noticeably in recent years.

If alternative crude oils cannot be delivered against a benchmark, declining production volumes can weaken the status of that crude oil as a benchmark. This is because it becomes a less accurate barometer of current supply and demand as it becomes traded less frequently, and lower traded volumes enable individual market participants to influence the price more easily. Malaysian Tapis – which was previously a key benchmark for the Asia-Pacific region – is a case in point. Tapis’s benchmark status has faded away in recent years owing to declining production volumes; recently, only a single cargo of Tapis has typically been available for export each month, down from around 8 cargoes per month in previous years.

This compares with around 45 cargoes per month currently for the Brent benchmark. Declining production volumes, coupled with the absence of any alternative similar crude oils produced in the region, have seen refiners and producers shift to benchmark against other prices, predominantly Brent.

The emergence of WTI as a benchmark was also assisted by the presence of secure legal and regulatory regimes in the United States. WTI was established as a benchmark in 1983 and its status increased in prominence as the depth and liquidity of its futures contract expanded. Like Brent, WTI is a light sweet crude that is available from a broad range of producers. Similarly, several different types of crude can be delivered against the WTI contract, including sweet crudes from Oklahoma, New Mexico and Texas, as well as several foreign crude oils. WTI crudes are delivered via an extensive pipeline system (as well as by rail) to Cushing, Oklahoma.

Recently, however, the system has struggled to cope with the increasing volumes of crude oil flowing through Cushing. This has resulted in persistent inventory bottlenecks, owing to Cushing’s limited storage capacity and its landlocked location. These bottlenecks have weighed on the WTI price in recent years, to the point where it is now significantly influenced by local supply and demand conditions, in addition to those for the world as a whole (as indicated by the divergence between WTI and Brent oil prices shown in Graph 3). This has weakened WTI’s status as a global benchmark. ...

Given that oil prices are essentially jointly determined in both the physical and financial markets, it is no easy task to disentangle the effect of each market in the price discovery process with any precision. Nevertheless, futures markets appear to play an important role in the pricing of oil, perhaps more so than for other commodities. Indeed, there is a view that crude oil price levels are essentially determined in the futures market.

This is clearest for WTI where PRAs identify the ‘physical’ price directly from the deep and liquid futures market, and where there is no significant parallel OTC market. It is less obvious, however, for Brent. While Brent forward prices are typically used by the PRAs to derive the Dated Brent price, as noted above Brent forward and futures markets are directly linked via EFPs. Many large oil market players reportedly hold Brent forwards and futures in their portfolios, arbitraging between the two instruments, such that the prices of Brent futures and forwards typically converge.

The complexity of the oil pricing arrangements makes it difficult to demonstrate convincingly that benchmark oil prices fully reflect physical supply and demand conditions rather than the actions of uninformed financial speculators. Nevertheless, movements over time in the price differentials for the various benchmark crudes are broadly consistent with changes in demand and supply. The Brent-WTI spread provides a good example of the influence of such factors on oil price differentials (Graph 6). Prior to 2011, Brent and WTI prices generally moved in tandem, with the spread largely reflecting the costs of transporting Brent-referenced crude oils to the United States. In recent years, however, increased volumes of crude oil from North Dakota and Canada have flowed into Cushing, leading to a build-up in inventories. Most pipelines flow from the rest of North America into Cushing, making it difficult to move the extra crude oil out of Cushing. This has led to persistent inventory bottlenecks, which have weighed heavily on the price of WTI over the past 18 months, leading the Brent-WTI spread to widen to US$10–30 per barrel.

The recent widening of the Brent-WTI spread is also likely to reflect concerns about declining production volumes in the North Sea. More transparent information about oil reserves, daily production volumes and demand-driven factors could assist more efficient pricing in the oil market. Information about the demand for oil is often not known until well after the period for which it is reported. On the supply side, there is ongoing concern regarding the accuracy of various countries’ reported production volumes, while oil reserve estimates are subjective and depend on partial information and project feasibility. There have been steps towards greater transparency in the oil market; for example, the Joint Organisations Data Initiative (JODI) was established in 2001 to provide accurate and timely crude oil data on production, consumption, trade, refining and inventories. Nonetheless, there is still scope to increase country coverage and data quality

NASA's Spitzer Images Out-of-this-World Galaxy (7/23/09)

NASAs Spitzer Space Telescope has imaged a wild creature of the dark — a coiled galaxy with an eye-like object at its center.

The galaxy, called NGC 1097, is located 50 million light-years away. It is spiral-shaped like our Milky Way, with long, spindly arms of stars. The "eye" at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white.

The black hole is huge, about 100 million times the mass of our sun, and is feeding off gas and dust along with the occasional unlucky star. Our Milky Ways central black hole is tame by comparison, with a mass of a few million suns.

NGC 1097 – click for 1000×1000 image

More: here, here, here

Ive written about dark matter a number of times, most recently here. A more extensive article is here.

The gist of things is that, although there has been much indirect evidence for dark matter, there have also been many skeptics, both among astrophysicists and in the general public.

Uncomfortable with the idea of dark matter as a postulated solution to a number of astrophysical puzzles, the skeptics have devised a number of alternative explanations for the various anomalies -- often by attempting to modify long-accepted principles of Newtonian gravity and general relativity.

But heedless of the skeptics, evidence for dark matter just keeps piling up. Here is the latest, just released today, and it is a lot less indirect than previous evidence:

NASA Finds Direct Proof of Dark Matter

Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. The discovery, using NASAs Chandra X-ray Observatory and other telescopes, gives direct evidence for the existence of dark matter.

"This is the most energetic cosmic event, besides the Big Bang, which we know about," said team member Maxim Markevitch of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass.

These observations provide the strongest evidence yet that most of the matter in the universe is dark. Despite considerable evidence for dark matter, some scientists have proposed alternative theories for gravity where it is stronger on intergalactic scales than predicted by Newton and Einstein, removing the need for dark matter. However, such theories cannot explain the observed effects of this collision.

For more commentary, see this at particle physicist Clifford Johnsons Asymptotia.

Tags: dark matter, astrophysics

TreeHugger has a look at a use for the glut of timber from trees killed by pine beetles - Interlocking Cross Laminated Timber Could Use Up Square Miles Of Beetle-Killed Lumber, and Look Gorgeous, Too.

The Mountain Pine Beetle is killing trees across North America, including up to 44% of Colorados forests. If there was any infrastructure investment to be made right now, I would have thought it would be to set up a pile of cross laminated timber factories fast, and put people to work churning out panels at a standard size and stockpiling them; CLT is strong, fire resistant, it sequesters carbon dioxide and it makes very pretty buildings.

At the University of Utahs Integrated Technology in Architecture Center, (ITAC) they are working on a modification of the design of CLT for the American market, namely figuring out how to make it cheaper.

The last episode of the high rating "Frozen Planet" was on TV here tonight, which reminded me of this story in The Daily Mail (of all places) noting that US viewers wont get to see it because it is about global warming, now apparently a taboo topic - Climate change episode of Frozen Planet wont be shown in the U.S. as viewers dont believe in global warming. Once science is abandoned you an only assume collapse wont be far behind...

An episode of the BBCs Frozen Planet documentary series that looks at climate change has been scrapped in the U.S., where many are hostile to the idea of global warming.

British viewers will see all seven episodes of the multi-million-pound nature series throughout the Autumn.

But U.S. audiences will not be shown the last episode, which looks at the threat posed by man to the natural world.

It is feared a show that preaches global warming could upset viewers in the U.S., where around half of people do not believe in climate change.

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CleanTechnica has an article on recharging electric buses while they are on the move - Active Wireless Charging In Transit; Remarkable Progress In Korea For Electric Vehicles.

Improvements with the electric transit infrastructure unfold at light speed. Active wireless charging in transit with electric vehicles, in this case electric buses, is taking place. Korea has broken through with accelerated wireless power efficiency with the Online Electric Vehicle (OLEV). This technology from the Advanced Institute of Science and Technology (KAIST) is setting another standard that increases the development of electric vehicles and addresses the (slight) time issue of charging. This breakthrough works for personal or public transportation presently, allowing vehicles to be charged while stationary or while moving. “This is accomplished by solving technological issues that limit the commercialization of electric vehicles such as price, weight, volume, driving distance, and lack of charging infrastructure,” ResearchSEA writes.

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examples of green technology unusual home fice home fice entrepreneurs may be surprised to learn that do not only refer to eco friendlier tablets or desktops instead

products tech country give products and technologies that are subsidized by the governments different countries to go india karnataka government grants grants for define at dictionarycom main entry part speech n definition see cleantech6 amazing groundbreaking inhabitat tweet share on tumblr email just as we love to hear is going the extra mile these days zipping well past the realm solar power into the

environmental wikipedia the free encyclopedia environmental envirotech tech or clean cleantech is the application one or more environmental science what is inventors example one the best known would be the solar cell a solar cell directly converts the energy in light intowhat are the qa wiki some are new machines that use less electricity than the machines they replace then there are the energy saver light globes that use florescent tubes

what are some inventions out there best answer the solar electric ro it can provide not only all the electricity the house uses but also provide its heat without using electrical6 inspiring groundbreaking tweet share on tumblr email this article is underwritten by veercom isnt just about wind turbines solar panels and alternative fuel anymorewhat is subject areas energy perhaps the most urgent issue for this includes the development alternative fuels