ethanol could be produced by other plants, like the sugarcane (http://en.wikipedia.org/wiki/Sugarcane), and the ethanol produced here in Brazil is much more cheapper (20%), grows all over the year, has faster fermentation (sugar x starch), and require the HALF SPACE to produce the same amount of ethanol.

ITOH, wind and solar power are very expensive and not sufficient effective, and the solar one require huge areas...

anyway, we always have the nuclear alternative: uranium has a very low cost and do nor hurt the ozone layer, but the process produce radioative substances that should be correctly stored for some thousand years. but i heard that some janapese folks are getting some success in...

ethanol could be produced by other plants, like the sugarcane (http://en.wikipedia.org/wiki/Sugarcane), and the ethanol produced here in Brazil is much more cheapper (20%), grows all over the year, has faster fermentation (sugar x starch), and require the HALF SPACE to produce the same amount of ethanol.

ITOH, wind and solar power are very expensive and not sufficient effective, and the solar one require huge areas...

anyway, we always have the nuclear alternative: uranium has a very low cost and do nor hurt the ozone layer, but the process produce radioative substances that should be correctly stored for some thousand years. but i heard that some janapese folks are getting some success in decrease this to some few centuries via particle accelerators.

the fact is: we must find some alternative because the global warming caused by petroleum is showing its first consequences and petroleum reserves are exhausting. (http://en.wikipedia.org/wiki/Petroleum#Hubbert_peak_theory)

In 2007 the U.S. was using about 2 billion bushels of corn for ethanol. The U.S. harvested about 11 billion bushels of corn per year. The initial boost in ethanol production sent the price of corn to about double what it was before. With the energy bill passed by Congress in Dec. 2007 4 billion more bushels of corn will be needed each year. This has the potential to eliminate the export of 2 billion bushels of corn and the need to import 2 billion bushels more corn each year at a time when grain inventories are at their lowest point in decades. Ethanol was already more expensive than gasoline with subsidies of 50 cents a gallon paid by taxpayers. Ethanol only got 80% of the miles per ...

In 2007 the U.S. was using about 2 billion bushels of corn for ethanol. The U.S. harvested about 11 billion bushels of corn per year. The initial boost in ethanol production sent the price of corn to about double what it was before. With the energy bill passed by Congress in Dec. 2007 4 billion more bushels of corn will be needed each year. This has the potential to eliminate the export of 2 billion bushels of corn and the need to import 2 billion bushels more corn each year at a time when grain inventories are at their lowest point in decades. Ethanol was already more expensive than gasoline with subsidies of 50 cents a gallon paid by taxpayers. Ethanol only got 80% of the miles per gallon that unblended gasoline got. The federally required use of ethanol might cause skyrocketing corn prices, famine, much higher gasoline prices, food price shock, and only provide about two or three percent more gasoline fuel for the average driver. The energy bill needed 40% of the corn harvest from the largest exporter of corn in the world and might cause hunger in the nation with the largest corn harvests. Ethanol is another attempt by the government to artificially manipulate the economy without good foresight.