04-06-2007
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#6 (permalink)
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Creating
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North of Sydney Australia
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Re: Terra preta- global Warming- Global cooling.
A study on Biofuels
Quote:
The results of the study showed that when compared with gasoline and diesel, ethanol and biodisel from corn and soybean rotations reduced greenhouse gas emissions by almost 40 percent, reed canarygrass by 85 percent.
Greenhouse gas emissions were reduced by about 115 percent for switchgrass and hybrid poplar.
Both switchgrass and hybrid poplar offset the largest amounts of fossil fuels reduced emissions compared to other biofuel crops and offset two times as much fossil fuels if they are used for electricity generation via biomass gasification.
Study results showed that nitrogen (N2O) emission resulting from production of the biofuel crops is the largest greenhouse gas source, while displaced fossil is the largest greenhouse gas sink followed by soil carbon sequestration.
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spare the rod: Biofuels: More than just ethanol
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"Unemployment is capitalism's way of getting you to plant a garden."
~Orson Scott Card  |
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