> The problem is that most scientists are not thinking carefully about > why the models fail. They are assuming that because the models > predict global warming and that global warming is happening then the > models are correct. But if you think carefully that does not follow.
What?!? That is why scientists use models, in most cases. To learn from where they fail. Sheesh. Yes, someone has not been thinking carefully about this... On Sat, Nov 22, 2008 at 2:22 AM, globalchange group <[EMAIL PROTECTED]> wrote: > > globalchange > http://groups.google.com/group/globalchange?hl=en > > [email protected] > > Today's topics: > > * "Humans may have prevented super ice age" - 1 messages, 1 author > http://groups.google.com/group/globalchange/t/f372a41cf58842c4?hl=en > * BIO-FUELS: the impressive Brazilian example - 1 messages, 1 author > http://groups.google.com/group/globalchange/t/4a26dea7ed1fcb80?hl=en > > ============================================================================== > TOPIC: "Humans may have prevented super ice age" > http://groups.google.com/group/globalchange/t/f372a41cf58842c4?hl=en > ============================================================================== > > == 1 of 1 == > Date: Wed, Nov 19 2008 2:32 am > From: James Annan > > > On Nov 19, 4:20 am, Alastair <[EMAIL PROTECTED]> wrote: > >> I have thought for a long time that forecasts of 50% rain were >> rubbish, no matter how complicated the calculations. Weather is >> chaotic so it cannot be precisely calculated. But the whole matter is >> more complicated than that. > > I think you would be hard pressed to construct a prediction of an > observation that did not admit to any uncertainty whatsoever. And that > is the case irrespective of chaos. > >> The problem is that most scientists are not thinking carefully about >> why the models fail. They are assuming that because the models >> predict global warming and that global warming is happening then the >> models are correct. But if you think carefully that does not follow. > > I have a sneaking suspicion that at least some scientists may have > considered the possibility :-) > > James > > > > > ============================================================================== > TOPIC: BIO-FUELS: the impressive Brazilian example > http://groups.google.com/group/globalchange/t/4a26dea7ed1fcb80?hl=en > ============================================================================== > > == 1 of 1 == > Date: Sat, Nov 8 2008 10:08 am > From: Alexandre > > > > Nowadays, due to the financial crisis and to global warming, there are > many people suggesting that it is the right moment to invest in the > development of environmentally friendly technologies. In this context, > investments in low-carbon solutions would be priority. I do not know > how realistic this idea is. New technologies usually take time to be > developed and the current crisis calls for investments that can > quickly generate new jobs and growth. However there are various > already existing eco-friendly technologies that can be adopted in the > short term. A good example of that is the successful Brazilian bio- > fuel model. In Brazil, nearly six million cars can use ethanol, from > sugar cane, as fuel. These cars are known as "flexible" because they > can run on a mixture of gasoline and alcohol, in any proportion (even > 100% alcohol). Most of the cars manufactured in Brazil nowadays are > flexible-fuel vehicles. > Besides, according to a national regulation, the Brazilian gasoline > has from 20% to 25% ethanol. Ethanol can be easily found in nearly 33 > thousand gas stations in the country and accounts for more than 40% of > the fuel consumption of the brazilian cars. > The use of sugar cane to produce ethanol is also a smart choice. Sugar > cane produces eight times more energy per pound than corn, and even > its waste, the bagasse, can be used for the production of bio-based > materials. > PS: sugar cane is planted vary far away from the amazon rain forest. > There is no deforestation because of it, as some people argue. > Find a lot more information at: > http://en.wikipedia.org/wiki/Ethanol_fuel_in_Brazil > ========================== > Alexandre Couto de Andrade > > > > > ============================================================================== > > You received this message because you are subscribed to the Google Groups > "globalchange" > group. > > To post to this group, send email to [email protected] or visit > http://groups.google.com/group/globalchange?hl=en > > To unsubscribe from this group, send email to [EMAIL PROTECTED] > > To change the way you get mail from this group, visit: > http://groups.google.com/group/globalchange/subscribe?hl=en > > To report abuse, send email explaining the problem to [EMAIL PROTECTED] > > ============================================================================== > Google Groups: http://groups.google.com/?hl=en > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. 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