Ethanol not the future of biofuels
In his recent column "Ethanol good for Kansas," our lieutenant governor tries to defend a misguided and (likely) doomed policy that was never fully thought through before receiving political approval: the subsidized burning of food in the form of bioethanol from corn. In a huge oversimplification, he tries to attribute all opposition to an "anti-ethanol campaign" by the Grocery Manufacturers Association. In fact, there is a huge backlash against bioethanol from many sources including scientists, conservationists and diverse business interests. Parkinson starts his defense by saying the corn used for bioethanol is not the same corn people eat. It is true we would not eat this as corn-on-the-cob or cornflakes, but it is the same corn used to fatten most of our livestock -- even catfish. A recent article in the New York Times documented the complete collapse of catfish farming in Alabama due to competition with bioethanol for feed grain. Corn costs might only contribute 5 percent to an expensive box of cereal, but it is a much higher proportional cost in poultry, meat and fish production and consumers are about to see all these (far more essential) foods rise in price as result of the ethanol policy.
Parkinson is correct that increasing global demand and higher production costs are pushing food prices up, but this is no excuse for using our tax dollars to subsidize the burning of 30 percent of our corn crop to produce less than 3 percent of our fuel. Furthermore, bioethanol has the really negative environmental impact of encouraging tropical deforestation to produce more grain, thus accelerating global warming rather than reducing it. This was confirmed in two highly cited publications in Science earlier this year. Only crops with a high free sugar content such as sugar cane and sweet sorghum make sense to ferment as these can yield 12 to 20 times more ethanol per acre than any grain crop.
Parkinson says if we were to stop adding ethanol to the nation's fuel supply, gas prices would increase by 35 cents a gallon, but he ignores the fact that ethanol takes 50 cents per gallon of subsidy to produce from corn. We could skip the ethanol and lower gas prices by 15 cents.
Parkinson points to "new technology" to make ethanol from switchgrass, corn stover and wheat straw, as if this somehow justifies our current use of corn. He also completely overlooks the critical importance of retaining these crop residues on the fields to conserve moisture, organic matter and soil structure. The use of corn stover for ethanol would threaten all the improvements in soil fertility and crop yields achieved through adoption of no-till agriculture during the past 15 years. The use of switchgrass would threaten the entire CRP program by encouraging farmers to abandon grassland conservation for a more profitable alternative. Furthermore, the volumes of raw material required for each gallon of cellulosic ethanol are intractably large and their shipping costs are prohibitive over any distance. How many ethanol plants are we planning to build?
Most biofuel scientists agree ethanol, whether from corn or cellulose, is not going to be the answer to our fuel problems for one very basic reason -- it is not "energy-dense" enough. A gallon of ethanol has only 70 percent as much energy as a gallon of gasoline -- so it needs to be 30 percent cheaper than gas before anyone in their right mind should buy it. Then there are higher distribution costs -- 30 percent more weight must be shipped to deliver the same energy -- an inherent limitation that no technology will solve. It is also a highly corrosive fuel that diminishes engine life and increases maintenance costs.
Biofuels do have a role in our energy future, but in the form of biodiesel that is far more energy-dense than ethanol. But this biodiesel cannot be allowed to compete with our food supply as it presently does. It must be made from waste materials, algae, or non-food crops that can be grown on land too poor for food production, otherwise it will have the same undesirable impacts on the environment and food security as bioethanol.
J.P. Michaud
1189 180th Ave.
we could fuel the fleet of trash haulers on JP's waste, alone
(Posted by: hill billy)
what to do: 8/3/2008
i've read jp's comments for a year now and i've yet to hear what he thinks is a solution to anything. give us a positive direction not just the doom and gloom
(Posted by: jamesehaze)
: 8/3/2008
Hemp has ten times more energy than corn, uses much less water and can grow almost anywhere. The original biofuel for autos 80 years ago. Hemp could also supply small local factories with material to make dozens of useful items. And, no it doesn't contain mind altering substances like ethanol which is basically moonshine. However, I think half of the ethanol produced is drank by politicians before the rest is used to dilute gasoline. I keep track of my mileage carefully and discovered I get get 22-24% less MPG with a 10% ethanol mix. Oh well, politicians say they know what's best for us idiots.
(Posted by: Frank Sens)
All comments are subject to approval before being posted. Please keep comments constructive and relevant. Opinions certainly can be expressed, but comments that are rude, abusive, slanderous, threatening, sexually oriented, contain profanity or are vulgar will not be tolerated. Comments will not be edited. Any comment that violates the above-listed rules will be deleted.





