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The risks are incalculable — one way it could backfire would be by increasing the ocean’s acidity, making blue skies a thing of the past.
Lowell Wood is someone who has few doubts about humankind’s ability to manipulate nature. He developed technology for the US military’s “Star Wars missile shield” and has recently promoted aerosol geo-engineering as a solution to climate change.
There are several investors, such as Richard Branson and Bill Gates, who have a vested interest in business-as-usual growth, but also seem to have a vision of themselves as saving the planet in a unilateral way — a messiah complex.
Hamilton described these men as “so out of sync with modern attitudes to nature that they seem like a throwback”.
For him they are committing the crime of hubris as they put themselves above the laws of nature. The risk of never seeing a blue sky again, as global dimming traps us in a cycle of continual aerosol cooling, is real.
www.greenleft.org.au...
Originally posted by Aloysius the Gaul
Originally posted by burntheships
reply to post by JibbyJedi
Well, believe me when I say they have spent billions on this. Just the U.S. budget alone
is in the billions!
For what exactly??
U.S. Global Change Research Program.
With its 2 billion dollar a year budget for 2011, its sure to be a game changer.
Which is mostly a research programme into the EFFECTS of climate change - why wouldn't you want good data on what is or is not happening??
Sure they spend some of the money on researching geo-engineering - ways in which climate change might be combatted - it would be remiss of them not to.
Sulfate aerosols also have a strong cooling effect on Earth, both through their ability to scatter incoming light and because of their propensity to increase cloud formation and reflectivity.
www.yaleclimatemediaforum.org... ate-change/
Originally posted by burntheships
reply to post by Phage
Originally posted by Phage
reply to post by burntheships
I don't really care if it's sulphates or any of the other suggestions.
Why not? I think you competely ignored any heath risks to the humans who breathe the air
of the plantet, and the animals for that matter.
Originally posted by burntheships
U.S. Global Change Research Program.
With its 2 billion dollar a year budget for 2011, its sure to be a game changer.
Sure they spend some of the money on researching geo-engineering - ways in which climate change might be combatted - it would be remiss of them not to.
Eyes wide shut. 2 Billion a year for things they aready know?
Milk that cow.
Sulphate in precipitation is an index of atmospheric pollution but natural sources also contribute to its concentration. One of the dominant natural sources of sulphate is seasalt and reseachers have routinely calculated its proportion using reference species such as Cl–, Na+ and Mg2+.
Originally posted by Aloysius the Gaul
David Keith (Canadian Geo-engineernig advocate) reckons using platelets of aluminium & barium would get around most of the problems that otehr chemicals might cause - but that possibility has it's own problems including taking an anourmous amount of resouorce to produce and distribute. Not to mention that he is a chemtrailers wet dream for wanting to spray aluminium AND barium "nanoparticles"...
investigation of how injecting large quantities of precisely engineered particles into the upper atmosphere might provide a cost-effective tool for climate intervention – geoengineering.
The idea of using aerosol particles for messing with climate change isn’t a new one – the idea of injecting sulfate aerosols into the stratosphere to reflect more sunlight away from the earth has been around for a while.......
........precisely engineered particles not too dissimilar from those that David described back in the 1990′s, which got me wondering whether techniques being used then for fabrication of silicon particles could be used for the more complex particles being proposed here....
Proposed self-aligning, levitating, sunlight-reflecting nano-disc (Keith, 2010)
In a nutshell, David’s idea is to engineer discs around 10 micrometers across and 50 nanometers thick, with a core of aluminum, a top layer of aluminum oxide, and a bottom layer of barium titanate. Injected high enough into the atmosphere
www.guardian.co.uk...
"No developing country will sign up to an agreement that could give them no extra money at all. The EU and other rich countries must provide new and additional finance, otherwise there will be no deal at all," said Rob Bailey, Oxfam's senior policy adviser. Developing nations have been unanimous and implacable on the terms of the finance deal.
Originally posted by Aloysius the Gaul
Originally posted by burntheships
U.S. Global Change Research Program.
With its 2 billion dollar a year budget for 2011, its sure to be a game changer.
Sure they spend some of the money on researching geo-engineering - ways in which climate change might be combatted - it would be remiss of them not to.
Eyes wide shut. 2 Billion a year for things they aready know?
Milk that cow.
Do you really think we know all there is to know about climate change and clearly and mankind's part in it??
Honestly - you think the research is all done and dusted??
Here I examine the possibility that engineered nanoparticles could exploit photophoretic forces, enabling more control over particle distribution and lifetime than is possible with sulfates, perhaps allowing climate engineering to be accomplished with fewer side effects. The use of electrostatic or magnetic materials enables a class of photophoretic forces not found in nature. Photophoretic levitation could loft particles above the stratosphere, reducing their capacity to interfere with ozone chemistry; and, by increasing particle lifetimes, it would reduce the need for continual replenishment of the aerosol. Moreover, particles might be engineered to drift poleward enabling albedo modification to be tailored to counter polar warming while minimizing the impact on equatorial climates.
Originally posted by burntheships
And? Yes, Aluminum is proposed still. And?
Its dangerous.
And...especially in nano particle size. And?
In 1998 Jasper Kirkby at the CERN particle physics lab in Geneva proposed an experiment called CLOUD to investigate the possible role of cosmic rays in atmospheric chemistry. The idea was to use a beam of accelerated particles to simulate the cosmic rays, and to look for aerosols produced in a reaction chamber containing air and trace gases.
The data revealed that electrons released in the air by cosmic rays act as catalysts. They significantly accelerate the formation of stable, ultra-small clusters of sulphuric acid and water molecules which are building blocks for the cloud condensation nuclei.
Environmental Impact: There are a variety of possible environmental consequences, which have been described in the studies by Rasch and Robock submitted at the last hearing. Among them are a) changes in the ratio of direct to diffuse sunlight, with possible impacts on ecosystem, and solar electricity generation; b) changes in precipitation patterns; c) changes in El Nino.
... b]Geoengineering should be viewed as a choice of last resort, It is much safer for the planet to reduce greenhouse gas emissions.
Originally posted by burntheships
Now, the race will be on to prove that aluminum and barium could adversly affect human health,
now that its out in the open they may move ahead with it.
Originally posted by Phage
reply to post by burntheships
Are they planning on dispersing this stuff with balloons?
Keith's own studies suggest that if we were ever forced to try to screen out some of the sun's rays globally, it would be more effective to spray sulphuric acid from aircraft (Geophysical Research Letters, DOI: 10.1029/2010GL043975).
It would also be cheaper, costing a few billion dollars a year according to a study by Aurora Flight Sciences
You may be sort of losing track of the topic.
Originally posted by Aloysius the Gaul
Originally posted by burntheships
Now, the race will be on to prove that aluminum and barium could adversly affect human health,
now that its out in the open they may move ahead with it.
Isn't this thread about spraying seawater, as a study for the possibility of spryaing sulphur dioxide?
Keith's own studies suggest that if we were ever forced to try to screen out some of the sun's rays globally, it would be more effective to spray sulphuric acid from aircraft (Geophysical Research Letters, DOI: 10.1029/2010GL043975).www.newscientist.com...
Efficient formation of stratospheric aerosol for climate engineering by emission
of condensible vapor from aircraft
Jeffrey R. Pierce
Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
www.agu.org...
Recent analysis suggests that the effectiveness of stratospheric aerosol climate engineering through emission of non-condensable vapors such as SO2 is limited because the slow conversion to H2SO4 tends to produce aerosol particles that are too large; SO2 injection may be so inefficient that it is difficult to counteract the radiative forcing due to a CO2 doubling. Here we describe an alternate method in which aerosol is formed rapidly in the plume following injection of H2SO4, a condensable vapor, from an aircraft. This method gives better control of particle size and can produce larger radiative forcing with lower sulfur loadings than SO2 injection. Relative to SO2 injection, it may reduce some of the adverse effects of geoengineering such as radiative heating of the lower stratosphere. This method does not, however, alter the fact that such a geoengineered radiative forcing can, at best, only partially compensate for the climate changes produced by CO2. www.agu.org...