Corn to Ethanol bio-fuel needs 1,700 litres of water to produce 1 litre of fuel

probe

Quote from Wall St Journal article:

"But even solar power is roughly 10 times as efficient as biomass-derived fuels like ethanol. In other words, growing the corn to produce ethanol means clearing land and killing animals on a massive scale, or converting land from food production to fuel production. Peter Huber of the Manhattan Institute says that the best-case scenario promoted by ethanol cheerleaders will actually cause the greatest environmental disaster. If people can actually refine cheap, low-maintenance production techniques that don't require huge water supplies, Mr. Huber predicts a world-wide leveling of forestland as farmers turn vegetation into fuel.

"Writing in Science magazine, Renton Righelato and Dominick Spracklen estimate that in order to replace just 10% of gasoline and diesel consumption, the U.S. would need to convert a full 43% of its cropland to ethanol production. The alternative approach -- clearing wilderness -- would mean more greenhouse gases in the atmosphere than simply sticking with gasoline, because the CO2-munching trees cut down to make way for King Ethanol absorb more emissions than ethanol saves."

http://online.wsj.com/article/SB119258870811261613.html

http://verticalfarm.com/pdf/Carbon_mitigation.pdf

.probe