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The Filter Bubble
May 7th
“It is an unfortunate fact that most people will tend to only see information which confirms their current beliefs”
Filter bubble
“Facebook was looking at which links I clicked on, and it was noticing that I was clicking more on my liberal friends’ links than on my conservative friends’ links. And without consulting me about it, it had edited them out. They disappeared.” (Eli Pariser)
http://www.ted.com/talks/eli_pariser_beware_online_filter_bubbles.html
It is an unfortunate fact that most people will tend to only see information which confirms their current beliefs. Thanks to choosing friends with similar beliefs, choosing news programs which report things in a way which we find agreeable, and now thanks to the filter bubble concept, even Google and Facebook are selectively giving us more of what we have previously indicated we liked and clicked on.
This is a real problem for those of us who are interested in genuinely finding the truth in this sea of opinions. How do we inform ourselves completely when everywhere we look (whether by design or by accident) we only see more self-confirming bias? Perhaps more importantly, how do we reach everyone else who is trapped in their own bubble of self-confirmation, and don’t even realise it?
In an attempt to help with this problem we have recently launched an application which provides a surprisingly simple way out of this self-confirmation bubble for anyone who cares to look. It is called rbutr, and it simply allows people to connect one webpage which makes a claim, to another webpage which rebuts that claim. In doing so, any future visitors to the original claim webpage are then able to see that that page has been rebutted, and can easily click through to read the rebuttal.
Large-scale production of bioenergy from forest biomass is neither sustainable nor GHG neutral
Apr 12th
New research from last week 14/2012
Posted on 11 April 2012 by Ari Jokimäki
http://www.skepticalscience.com/new_research_14_2012.html
Large-scale bioenergy from additional harvest of forest biomass is neither sustainable nor greenhouse gas neutral – Schulze et al. (2012)
http://onlinelibrary.wiley.com/doi/10.1111/j.1757-1707.2012.01169.x/abstract
Abstract: “Owing to the peculiarities of forest net primary production humans would appropriate ca. 60% of the global increment of woody biomass if forest biomass were to produce 20% of current global primary energy supply. We argue that such an increase in biomass harvest would result in younger forests, lower biomass pools, depleted soil nutrient stocks and a loss of other ecosystem functions.
The proposed strategy is likely to miss its main objective, i.e. to reduce greenhouse gas (GHG) emissions, because it would result in a reduction of biomass pools that may take decades to centuries to be paid back by fossil fuel substitution, if paid back at all.
Eventually, depleted soil fertility will make the production unsustainable and require fertilization, which in turn increases GHG emissions due to N2O emissions.
Hence, large-scale production of bioenergy from forest biomass is neither sustainable nor GHG neutral.”
Citation: Ernst-Detlef Schulze, Christian Körner, Beverly E. Law, Helmut Haberl, Sebastiaan Luyssaert, GCB Bioenergy, DOI: 10.1111/j.1757-1707.2012.01169.x.
This carbon neutral claim has always sounded suspect. Chopping forest causes a loss of water distribution that limits the ability to sustain new growth. The result points to more desertification. Climate change deniers like to reference millions of years ago when the planet sustained far more CO2 in the air.
We must not forget the climatic conditions which preceded this situation. We cannot expect an increase of CO2 now to develop into anything like what happened millions of years ago. Anyway, unless our thinking changes, water supplies left available will be used to sustain humans and not trees.
Bee Friendly Zones
Apr 11th
Copied from theTransitionTownTotnes Newsletter 65 – April 2012
Bee Friendly Zones with Bridgit Strawbridge [‘it isn’t easy being green series] and Phil Chandler author of ‘The Barefoot Beekeeper’ and an internationally recognized exponent of natural beekeeping.
We are really pleased that Brigit Strawbridge from the BBC2 series ‘It’s Not Easy Being Green’ and a passionate campaigner for all types of bees, will be speaking alongside Totnes’ own Phil Chandler.
We’ve all heard about the threat to honey bees from colony collapse disorder but few people realize that Bumble Bees and hundreds of other essential pollinating insects are also under threat from pesticides, declining habitats and the loss of biodiversity in our towns and countryside.
Brigit and Phil will be outlining the problems but also explaining just what we can do, in our own gardens, allotments, streets and communities, to create Bee Friendly Zones. Not to be missed…
Tuesday 17th April.TotnesMethodistChurch. 8pm. £4/£3 conc.
Group decides that CO2 lags Temperature
Apr 9th
4 April 2012
CO2 ‘drove end to last ice age’
By Jonathan Amos Science correspondent, BBC News
http://www.bbc.co.uk/news/science-environment-17611404
“Our global temperature looks a lot like the pattern of rising CO2 at the end of the ice age, but the interesting part in particular is that unlike with these Antarctic ice core records, the temperature lags a bit behind the CO2,” said Dr Shakun, who conducted much of the research at Oregon State University but who is now affiliated to Harvard and Columbia universities.
“You put these two points together – the correlation of global temperature and CO2, and the fact that temperature lags behind the CO2 – and it really leaves you thinking that CO2 was the big driver of global warming at the end of the ice age,” he told BBC News.
Sky: I suggest that we look very carefully at this article. The findings are anything but conclusive. The charts showing CO2 and temperature have always shown that they are very closely interwoven. I am suspicious reading the contents of the quote below. “CO2 was the big driver of global warming at the end of the ice age” As Don J. Easterbrook, PhD Emeritus Professor of Geology, Western Washington University. Retired, reminded readers recently,[ http://wattsupwiththat.com/] correlation does not prove cause. When two phenomena move together they are often simply driven by the same phenomenon. We must ask, what drove the driver? What made the CO2 shift? Obviously we ask, What made the temperature shift? There is very little doubt that when in the midst of an ice age, a warming trend strong enough to melt glaciers almost obviously comes from an increase of heat retention from the sun. When the sun’s orbit is more circular and the Earth’s tilt allows the sun’s rays to strike the Earth in the North and South more directly and precession favours warmer summers, [not so effective when the Earth’s orbit is nearly circular] then ice in polar areas will melt. It just so happens that CO2 and temperatures are low during an ice age. It is probable that as insolation increases oceans become warmer and thus expel some of the accumulated CO2 into the air. If the high insolation persists, then you get the combination of insolation and the greenhouse effect working together as positive feedbacks. From the graphs, it appears that these positive feedbacks gain momentum and cause an interglacial period in a couple of thousand years or so. There doesn,t appear to be any other factor than a temperature increase that would cause a rise in CO2. Ice core data may not be precise enough to prove which one occurred first.
“Right off the bat, a most surprising conclusion in this paper is that the authors claim that correlation proves cause. Simply showing that CO2 correlates with anything surely doesn’t prove that CO2 was the cause. It’s the same kind of mindset involved with the oft-heard claim that if we have had global warming while CO2 was rising that proves the cause was the rise in CO2.” Don J. Easterbrook, Phd
http://wattsupwiththat.com/
Who Cares?
Apr 2nd
Drought fears for Midlands and south-west England
http://www.bbc.co.uk/news/uk-17571709
“Farmers in East Anglia are unlikely to be allowed to draw water from the ground or rivers to irrigate crops. Some are reporting crop reductions of between 20-50%, in vegetables like onions and carrots.
Extra capacity is being found in other areas of the country.
Environment Agency water resources head Trevor Bishop told BBC Radio 4’s Today programme the situation was becoming more serious.
‘If we see a continuation of dry weather, which is now very likely, these conditions will probably extend further westward over the next couple of months.’”
I suggest we reconsider taking on the responsibility of “feeding the world.” I repeat, we do not have the problem of lack of food or lack of growing areas where food is needed. The problem is largely twofold. [1] Too many people live where they have “eaten out their environment” [2] Exploitation by the wealthy who own large tracts of land and grow food for export to enable the well to do to gobble out of season fruit and vegetables. Surely if we plough up marginal land here to feed them there, then they will continue to make more and more children until we all be in the same boat.
A few questions. Where will the water come to increase global food? Where will the water come from to water the millions of trees needed to reduce CO2 to stabilize the climate so droughts can be reduced? Now that food has become a global commodity in a global market, can we expect the food sector to favour reducing demand by backing efforts to restrain population growth? Of course not. Except for China, when have you read about a government encouraging the limitation of population growth? I suggest that most governments are now driven by the business attitudes that favour more people. They would wouldn’t they?
Regulators are interesting devices. Voltage regulators, for instance keep a constant voltage level to a voltage output. Regulators are vital to the function of a diesel engine driving a generator because when the regulation fails, the engine “runs away” and explodes.
Perhaps a corporate structure lacks a “regulator.” Is there a corporate concept of “enough profit?” Do corporate executives ever make “enough”?
Can you imagine this statement being made by a corporate executive to the board? “Well, we need to decrease our output and consider that we have made enough profit this year. Our procurement policy is overdriving supply to the detriment of both the organisations and dependent environment.” Sound familiar? Of course not.
I’m just rereading a letter sent to the government of Slovenia from James Hansen, one of my heroes. Read it here if you will.
http://www.columbia.edu/~jeh1/mailings/2012/20120330_SlovenianPresident.pdf
“The most basic matter is not one of economics, however. It is a matter of morality – a matter of intergenerational justice. As with the earlier great moral issue of slavery, an injustice done by one race of humans to another, so the injustice of one generation to all those to come must stir the public’s conscience to the point of action.”
Intergenerational justice. I often consider starting my memoirs so that my grandchildren might know who I was and what I thought. Why? Well, I know very little about my Grandfather McCain and I often wonder now what he thought about things. Who was he really?
However, will my grandchildren ask, “Was our welfare important enough to you that you cared enough to speak out during your life against the wanton destruction of our way of life?
You could see clearly what was happening and how things would turn out when we were too young to either realise it or speak out. Did you lift a finger on our behalf?”
Don’t increase chemicals, decrease people
Mar 30th
“Food security focus fuels new worries over crop chemicals
Scientists, environmentalists and farm advocates are pressing the question about whether rewards of the trend toward using more and more crop chemicals are worth the risks, as the agricultural industry strives to ramp up production to feed the world’s growing population.”
http://www.reuters.com/article/2012/03/27/us-food-chemicals-idUSBRE82P16J20120327
“More than 88,0000 tons of glyphosate were used in the United Statesin 2007, up from 11,000 tons in 1992, according to the U.S. Geological Survey. Critics of 2,4-D fear a similar rise in the use of that herbicide.”
This is not only ecocide but suicide as well. Who wants to plough up every available meadow and hillside to feed a human population that is out of control? What makes us here in developed countries where population increase has levelled off or decreased, responsible to feed people from abroad who will not cut back on population growth? Think about this.
Yes, of course, there is economic inequality and lack of land to feed people locally, but that is a political problem – an economic activity – a human rights problem.
Will ploughing up marginal land here solve that? Of course not.
Remember, food is now a commodity on a global market. People get rich manipulating prices. Vast power structures encourage over-population because it is just a wider and deeper market for the exploitation of food exchange.
How about asking ourselves the following question. What happens to all other beings who eat out their environment? You know the answer as well as I do.
Gaia, our dear higher self is not a market basket for humans.
We don’t have too little food, we have too many people. Remember, to multinationals, economic growth means people growth to fuel it, in addition to the rampant and shameless ecocide.
Is this a rant? Perhaps, I am just a still small voice crying in the wilderness – caught in a whirlpool of forces with problems placed in the “too hard” box.
Revealed, The truth about supermarket ‘bargains’
Jan 1st
Revealed, The truth about supermarket ‘bargains’
http://news.bbc.co.uk/panorama/hi/front_page/newsid_9652000/9652944.stm
“The deals at Asda, Tesco, Morrisons and Sainsbury’s might seem to be everywhere, but strip away the jargon and catchy promises of “huge savings” and “special offers” and you are just as likely to find tactics that experts say range from a bit cheeky to others that could lead to prosecutions for breach of consumer protection regulations.”
The cost of petrol and oil – This is a stunning revelation
Dec 31st
The cost of petrol and oil: How it breaks down
8 November 2011 Last updated at 00:00
By Richard Anderson and Damian Kahya Business reporters, BBC News
http://www.bbc.co.uk/news/business-15462923
“We all know petrol costs a lot, but how many of us actually know why, and who profits from selling the stuff?
The cost of petrol and diesel can actually be broken down fairly precisely, and it’s immediately obvious who the primary beneficiary is: the government.
Well over half, in fact about 60%, of the £1.34 odd we pay for a litre of unleaded is fuel duty and VAT.
Less than 5% goes to the petrol retailer, in some cases more like 1%, which helps in part to explain why so many are struggling despite recent rises in fuel costs.
Next to tax, the single biggest component in the price of petrol is… well, the petrol itself, which accounts for about 30% of the overall cost.
For example, a bog standard barrel of oil fromSaudi Arabiacosts about $2-$3 to extract from the ground, whereas a barrel taken from tar sands in Albertacan cost more than $60.”
Looks like the taxpayers are subsidizing tar sands, doesn’t it?
Possible Organ Failure – Genetically Engineered Corn
Dec 31st
Huffington Post Katherine Goldstein/Gazelle Emami First Posted: 03/18/10 06:12 AM ET Updated: 05/25/11 04:10 PM ET
Organ Failure, Study Reveals
http://www.huffingtonpost.com/2010/01/12/monsantos-gmo-corn-linked_n_420365.html
“In a study released by the International Journal of Biological Sciences, [http://www.biolsci.org/] analyzing the effects of genetically modified foods on mammalian health, researchers found that agricultural giant Monsanto’s GM corn is linked to organ damage in rats.
Also see Food Freedom [ http://foodfreedom.wordpress.com/2010/01/01/three-approved-gmos-linked-to-organ-damage/]
Monsanto gathered its own crude statistical data after conducting a 90-day study, even though chronic problems can rarely be found after 90 days, and concluded that the corn was safe for consumption. The stamp of approval may have been premature, however.”
Background of the Hockey Stick and Climategate controversies
Dec 29th
I think you will find this article very interesting.
Sky
Michael Mann, hounded researcher
http://www.skepticalscience.com/MichaelMann.html
Posted on 30 December 2011 by Andy S
“Here is a translation of recent article (December 25th, 2011) in the French newspaper Le Monde by science journalist Stéphane Foucart. He reports on a talk that Michael Mann gave at the 2011 AGU Fall Meeting in San Francisco, in which Mann introduces his forthcoming book The Hockey Stick and the Climate Wars: Dispatches from the Front Lines. Foucart interviews Mann and discusses the background of the Hockey Stick and Climategate controversies. What is refreshing is the absence of the false balance, both-sides-of-the-story, style of reporting that is found so often in English language newspapers. ”
“Those who attack us have won in the sense that they have succeeded in delaying any action on global warming by ten, twenty, maybe thirty years,” he concedes with worry as he sees his country succumbing to anti-science. “Denying either anthropogenic climate change or evolution has become a condition of admission to the Republican Party. That’s something quite new and very scary”.