According to REPORTpresented at an American Society of Mechanical Engineers conference in 2007 offers some alarming estimates: Producing a [B]gallon (3.79 liters) of corn ethanol, for example, consumes 170 gallons (644 liters) of water [/B]in total, from irrigation to final processing. [B]Soybean biodiesel manufacture needs some 900 gallons of water (3,400 liters) per gallon of fuel. [/B]On the other hand, the water requirement [B]to make a gallon of regular gasoline is just five gallons (19 liters).[/B]
Checkout the report for more interesting analysis.
