You've got some bad numbers. Brazil is the sixth largest auto producer in the world, with a production close to 3.2 million units last year (source ANFAVEA, http://www.anfavea.com.br/tabelas.html). The total fleet exceeds 58.5 million (source: Wikipedia, http://pt.wikipedia.org/wiki/Lista_de_estados_do_Brasil_por_frota_de_ve%C3%ADculos). Most of the new cars are flex-fuel, capable of using anything from 20 to 100% ethanol.
And, please, don't mix ethanol production and deforestation, at least not directly. Ethanol production is centered in the southeast, thousands of kilometers from the amazon. You will find grasslands and soybean in the amazon, and you can associate that (though it is debatable) with the recent expansion of sugarcane over old grasslands.
At the time, I found a 2006 short note on greencarcongress , about a comparison published by Auto Bild, a German weekly magazine. Their data support the notion of a steady increase in fuel consumption with increased speed, even with modern, high speed autos.
Well said. I'm Brazilian too, and I just want to add that six fiscals of the national revenue service have also been arrested. If one wants to look at it as proof of corruption, that's one's choice. I'd rather see it as proof of fight against corruption.
Look at the source! The source of data for ethanol from sugarcane is a 1980 article, considering american conditions. Much has changed over the last 25 years...
According to NASA NASA's Deep Impact spacecraft continues to sail through its final checkout, as it hurtles toward comet Tempel 1. Impact with the comet is scheduled for 1:52 a.m. EDT, July 4 (10:52 p.m. PDT, July 3).
Ethanol production from corn, you mean. If you use sugarcane as feedstock, there is a significant net energy outcome.
A more thorough article has been http://petroleum.berkeley.edu/papers/patzek/CRPS41 6-Patzek-Web.pdf> published by Mr. Patzek. It could also be argued that he is considering only the current practices in american industry. If best practices were adopted, the results would surely change somewhat.
Actually, according to this table the US daily total demand is close to 20 million barrels, with 11 million imported. Transportation uses close to 13 million barrels per day.
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You've got some bad numbers. Brazil is the sixth largest auto producer in the world, with a production close to 3.2 million units last year (source ANFAVEA, http://www.anfavea.com.br/tabelas.html). The total fleet exceeds 58.5 million (source: Wikipedia, http://pt.wikipedia.org/wiki/Lista_de_estados_do_Brasil_por_frota_de_ve%C3%ADculos). Most of the new cars are flex-fuel, capable of using anything from 20 to 100% ethanol.
And, please, don't mix ethanol production and deforestation, at least not directly. Ethanol production is centered in the southeast, thousands of kilometers from the amazon. You will find grasslands and soybean in the amazon, and you can associate that (though it is debatable) with the recent expansion of sugarcane over old grasslands.
Not usual, perhaps something very specific with your car.
A similar question popped up on econbrowser a few months ago. They traced the origins of the chart to a 1998 study, whose data can be found at Table 7.23 of the DOE's Transportation Energy Data Book (large pdf warning).
At the time, I found a 2006 short note on greencarcongress , about a comparison published by Auto Bild, a German weekly magazine. Their data support the notion of a steady increase in fuel consumption with increased speed, even with modern, high speed autos.
Not only that, diesel fuel contains between 18 and 30 percent more energy per gallon than gasoline http://www.eia.doe.gov/kids/energyfacts/sources/non-renewable/diesel.html (even kids should know that...)
Well said. I'm Brazilian too, and I just want to add that six fiscals of the national revenue service have also been arrested. If one wants to look at it as proof of corruption, that's one's choice. I'd rather see it as proof of fight against corruption.
Look at the source! The source of data for ethanol from sugarcane is a 1980 article, considering american conditions. Much has changed over the last 25 years...
For another perspective, see http://www.realclimate.org/index.php?p=172 and the individual responses by: Michael Mann http://www.realclimate.org/Mann_response_to_Barton .pdf,r ton.pdf and Malcolm Hughes http://www.realclimate.org/Hughes_response_to_Bart on.pdf.
Ray Bradley http://www.realclimate.org/Bradley_response_to_Ba
Though the NSF does not require the disclosure of code, the procedures used have been available for years, as well as the FORTRAN codes.
According to NASA NASA's Deep Impact spacecraft continues to sail through its final checkout, as it hurtles toward comet Tempel 1. Impact with the comet is scheduled for 1:52 a.m. EDT, July 4 (10:52 p.m. PDT, July 3).
Therefore you can choose your date...
As I pointed above, a version of the printed article is available on the web http://petroleum.berkeley.edu/papers/patzek/CRPS41 6-Patzek-Web.pdf
Ethanol production from corn, you mean. If you use sugarcane as feedstock, there is a significant net energy outcome.
1 6-Patzek-Web.pdf> published by Mr. Patzek. It could also be argued that he is considering only the current practices in american industry. If best practices were adopted, the results would surely change somewhat.
A more thorough article has been http://petroleum.berkeley.edu/papers/patzek/CRPS4
Actually, according to this table the US daily total demand is close to 20 million barrels, with 11 million imported. Transportation uses close to 13 million barrels per day.