Bioethanol (et d'autres biofuels)

Citation :

Water use: Biofuel plants' thirst creates water worries

State regulators fear some parts of Iowa won't have enough water to handle the booming biofuels industry.

Plant operators say they have reduced the amount of water needed to produce ethanol, but the facilities still need abundant local water supplies. A single plant producing 100 million gallons of ethanol a year - a capacity quickly becoming the norm - uses as much water as a town of approximately 10,000 people, the Iowa Department of Natural Resources reports.
[...]
In Buena Vista County near Alta, Oregon Trail Energy recently requested permission to pump up to 788 million gallons of water a year for a 120 million-gallon-a-year ethanol plant.
[...]
In Minnesota, plans to build a plant in Pipestone were abandoned because the area lacked the 350 million gallons of water a year that was needed to make 100 million gallons of ethanol, a report by the Institute for Agriculture and Trade Policy found.
http://www.desmoinesregister.com/apps/pbcs.dll/article?AID=/20070603/BUSINESS01/706030323/1001/NEWS

hé oui ! si on passe au biocarburant, il va en falloir de l'eau pour arroser toutes ces cultures ! et comme l'eau va bientôt manquer, on passera de la guerre du pétrole à la guerre de l'eau, super

les voitures à hydrogène ? ou énergie solaire ? ou encore j'avais vu un truc qui pouvait fonctionner avec... le caca cool nan, le matin, tu fais tes besoins dans ton réservoir et hop !

on ira moins vite, mais toujours plus vite qu'à dos de chameau...