[Graeme]

Ethanol – the Good, the Bad, the Ugly, the Beautiful

$this->bbcode_second_pass_quote('', '[')b]The Good
By John Addison. The 9 billion gallons of ethanol that Americans used last year helped drive down oil prices. For those of us who fuel our vehicles with gasoline, as much as 10 percent of that gasoline is ethanol. The Energy Independence and Security Act of 2007 requires that more biofuel be used every year until we reach 36 billion gallons by 2022.
Reduced oil prices are good. We can go from good to great, if we move past fuel from food and haste to fuels from wood and waste. Although the economics do not yet favor major production, pilot plants are taking wood and paper waste and converting it to fuel. Other cellulosic material is even more promising. Some grasses, energy crops, and hybrid poplar trees promise zero-emission fuel sources. These plants absorb CO2 and sequester it in the soil with their deep root systems. These plants often grow in marginal lands needing little irrigation and no fertilizers and pesticides, standing in sharp contrast to the industrial agriculture that produces much of our fuel.