Hero wrote:
The biggest thing hindering the biofuels nowadays is BIG OIL period...
Not really true. The oil corporations profit on the distribution of oil products, not on the production of them. Whether the product distributed is gasoline or diesel manufactured from middle eastern oil or ethanol and BD made from plants is irrelevant, they own the distribution infrastructure and will profit the same either way. This is a really common misconception, but if you look into who actually owns the oil fields, it is mostly governments that partner with oil corporations for extraction. They don't own the oil themselves, and frequently lose thier investments due to coups and nationalization of resources in nations.
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Ethanol is a joke, especially when produced using corn. Did you know that at least one gallon of oil goes into producing one gallon of ethanol in America currently? Sure the BIG OIL companies will sell you corn ethanol and make a big deal of it along with domestic automakers, they're all making double the profit! Farmers and their lobbyists are certainly benefitting as well, but the America consumer doesn't

Ethanol production and distribution is starting to rear is ugly financial head after years of heavy government subsidies that are starting to bust and drive up the consumer price to where there are no benefits of buying E-85 or even 10% ethanol blended gasoline.
This is true, as much or more energy is typically expended in ethanol and even BD production as is gained by burning them. Furthermore the water needed for thier production is tremendous(especially with ethanol) and the cropland required were we to expand our usage would mean major loss of natural habitat, in Brazil and southeast Asia the loss of forests are simply staggering.
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Hemp is the absolute most efficient product to use in the creation of ethanol and biodiesel. It creates more fuel per capita and the fuel that is created has more energy content than that of other means of production. But even industrial hemp is illegal in America, although it is becoming a serious cash crop in places like Canada and throughout Europe. But hemp = EEEEEEVIL in ultra-conservative America

I have never heard of hemp as a good energy source, however I highly doubt its competitive with switchgrass or miscanthus, both of which provide many times the energy density of corn or even sugar cane. The list is here:
http://en.wikipedia.org/wiki/Ethanol_fu ... production