Much has been argued about the water budget for ethanol production. The industry argues that it's not that bad - a mere 3 to 4 gallons of water for every gallon of ethanol. Well, like everything else, it depends on what you account for. The way I figure it... Corn in our area (Northwest Kansas) will take an average of 150 AF of water to grow an average of 225 bushels on a 120 acre circle - a very typical arrangement - here.
The world seems to be embracing biofuels like ethanol. According to a report from the Global Industry Analysts, the world is forecast to produce 27.7 billion gallons of ethanol by 2012. Read Post
The GAO says it requires 7-321 gallons of water per gallon of corn ethanol, but when it comes to second generation biofuels, we have very little good data. Photo: Don O'Brian via flickr By this point the water intensity of using fir... Read Post