Harry,
Thanks for your post. My Para 1. I [skeptically] have difficulty believing that a change in carbon levels in the atmosphere from 280 ppm to perhaps 400 ppm is the real cause of any global warming. The sun provides many orders of magnitude of energy to the Earth. Tons of CO2 [arguably a factor of 500 more] are released by volcanoes and oceans irrespective of human activity. Dugh, like Nitrogen is 70%, oxygen 30% and the rest perhaps 2% [and I know that does not add up]. Neither do IPCC plans and papers, but we will all pay. I can believe an A380 burning 200 tonnes leaves carbon in the upper levels but return to para 1. And a jet powered glider burning 50 kg of C?H?O??? perhaps is minuscule. And [from my readings, a much bigger 'blanket' keeping the earth warm is water vapour. And perhaps the minuscule carbon bits will accentuate cloud creation? I don't know or have not seen much in my readings. Perhaps water vapour will keep the heat 'under the blanket'. Or .. Even be a balancing factor: too hot, more carbon = more water vapour = more clouds more cooling, too cold less clouds; more warming etc. Ho Hummm.. I think there will be enough thermals and wave for my remaining requirements. But Harry, thanks for your insights. SMFLST Alan Wilson From: [email protected] [mailto:[email protected]] On Behalf Of harry medlicott Sent: Friday, 06 May, 2011 10:27 To: Discussion of issues relating to Soaring in Australia. Subject: Re: [Aus-soaring] Bonus Jet Some hard facts. Once a forest, savanah or any form of original vegetation reaches a mature state due to the limit of the amount of vegetation sustainable by available water and nutrients resulting from the degradation of non organic minerals, the carbon cycle is such that there is no net gain by way of a reduction in atmospheric carbon dioxide levels. The exception is the carboniferous materials which are carried out to sea and eventually converted to gasses or oils which we seek to extract millions of years later or laid down on land as coal or shale oil deposits. Interestingly, to the chagrin of our dedicated environmentalists, when a forest is harvested, the carboniferous materials such as timber are then locked away for perhaps a century or more and the regrowing forest then positively contributes to carbon dioxide abatement. The climate change enthusiasts who have spawned a self serving industry intent on rubbishing anyone with a contrary view, have also got something else very much wrong. The warming of the oceans, which is undisbuted, will result in the evaporation of greatly increased amounts of water which will fall as rain somewhere. The drought breaking rains of the last 12 months are the result of slightly increased ocean temperatures, to the North West of Australia it is the Indian Ocean Dipole and to the East it is the Il Nina effect. None of this increased rainfall was predicted by the CSIRO or the various meteorological organisations in Australia yet for some improbable reason, the cutbacks in Murray Darling water allocations were based on a 10% reduction in river flows. The consistent drought in South Western WA is because that area derives its winter rainfall from the Antartic Circumpolar Current. This as yet, has not icreased in temperature as its heat source is the great ocean currents which transfer heat from the tropics to the Arctic and Antarctic waters. Without these currents the polar regions would be incredibly cold as the heat radiated to space is many times greater than the solar input. As an example of what will happen with increased rainfall, the Simpson desert is green for the first time in Aboriginal memory. The Australia wide increase in vegetation will result in the fixing of huge amounts of carbon, concievably far more than all our puny abatement measures. The down side is that gliding may not be quite as interesting, Harry Medlicott. ----- Original Message ----- From: erich wittstock <mailto:[email protected]> To: Discussion of issues relating to Soaring in Australia. <mailto:[email protected]> Sent: Thursday, May 05, 2011 10:15 PM Subject: Re: [Aus-soaring] Bonus Jet ...some say oxygen is produced and carbon is "sinked" by trees. Little do they know that most of that cycle is done by our oceans and the little critters within. Thus most of our fossil fuels originate from our oceans. Let's blame continental drift for it ending up under our land masses. Feasible theory. Same for Titan. But how about the inefficiency of using a turbo-jet engine compared to turbo-fan and turbo-prop engines at low speeds? Let alone extracting and refining vast amounts of higher chain hydrocarbons. Why not use solar light? The nit-ti grit-ties of accumulating electron differentials are being improved as we type. Political monkey dance aside: the Prius is now in the third generation (Cameron Diaz even likes it...) and the panels on the roofs of those that installed them seem to work as well. The steam engine, micro processor and electric vario were once labelled "useless projects" as well. But they did help us along the way. Admit it, Mike, you are spending more time flying electric pushers and impeller types than flying jet powered models. I just witnessed one of these "oh so dangerous" LiPo's being crunched to mush induced by an aerobatic "standing 9" figure. It didn't explode nor ignite (very disappointing...) Voyager was another one of those "useless projects". But it did fly around the world in a single flight. What if Solar-impulse can do the same? Why didn't you listen to those that were of the opinion that electric varios are never going to be useful? Where is your spirit gone? Fossilised, waiting to be refined and burned? Erich On Thu, May 5, 2011 at 21:01, Mike Borgelt <[email protected]> wrote: At 08:39 PM 5/05/2011, you wrote: ..for those interested in non dinosaur fuel technology. <http://www.solarimpulse.com>http://www.solarimpulse.com Depends whether you are a fan of the "dead dinosaur" theory of oil formation. Problem is the vast amounts of hydrocarbons on the surface and and the atmosphere of Titan, largest moon of Saturn. I've heard no serious suggestions that it was once populated by dinosaurs. So we have an existence proof that vast amounts of higher chain hydrocarbons can be formed independent of life. Bit of a problem, that. Solarimpulse is the sort of useless project done in stultified, degenerate cultures like that of Europe to entertain the masses and relive a minute part of the faded glory of Europe's age of exploration and discovery. Mike Borgelt Instruments - manufacturers of quality soaring instruments since 1978 phone Int'l + 61 746 355784 <tel:%2B%2061%20746%20355784> fax Int'l + 61 746 358796 <tel:%2B%2061%20746%20358796> cellphone Int'l + 61 428 355784 <tel:%2B%2061%20428%20355784> email: [email protected] website: www.borgeltinstruments.com _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring _____ _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring _____ No virus found in this message. 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