Ethanol, Schmethanol

[SeanD]

Everyone seems to think that ethanol is a good way to make cars greener. Everyone is wrong

http://economist.com/science/displaystory....tory_id=9861379

Phony green arguments

Biofuel - gasoline or other fuel produced from refining food products - is being touted as a solution to the controversial global-warming problem. Leaving aside the faked science and the political interests behind the sudden hype about dangers of global warming, biofuels offer no net positive benefits over oil even under the best conditions.

Their advocates claim that present first-generation biofuels save up to 60% of the carbon emission of equivalent petroleum fuels. As well, amid rising oil prices at $75 per barrel for Brent marker grades, governments such as Brazil's are frantic to substitute home-grown biofuels for imported gasoline. In Brazil today, 70% of all cars have "flexi-fuel" engines able to switch from conventional gasoline to 100% biofuel or any mix. Biofuel production has become one of Brazil's major export industries as well.

The green claims for biofuel as a friendly and better fuel than gasoline are at best dubious, if not outright fraudulent. Depending on who runs the tests, ethanol has little if any effect on exhaust-pipe emissions in current car models. It has significant emission, however, of some toxins, including formaldehyde and acetaldehyde, a suspected neurotoxin that has been banned as carcinogenic in California.

Ethanol is not some benign substance as we are led to think from the industry propaganda. It is highly corrosive to pipelines as well as to seals and fuel systems of existing car or other gasoline engines. It requires special new pumps. All that conversion costs money.

But the killer about ethanol is that it holds at least 30% less energy per liter than normal gasoline, translating into a loss in fuel economy of at least 25% over gasoline for an Ethanol E-85% blend.

No advocate of the ethanol boondoggle addresses the huge social cost that is beginning to hit the dining-room tables across the US, Europe and the rest of the world. Food prices are exploding as corn, soybeans and all cereal-grain prices are going through the roof because of the astronomical - US Congress-driven - demand for corn to burn for biofuel.

This year the Massachusetts Institute of Technology issued a report concluding that using corn-based ethanol instead of gasoline would have no impact on greenhouse-gas emissions, and would even expand fossil-fuel use because of increased demand for fertilizer and irrigation to expand acreage of ethanol crops. And according to MIT, "natural-gas consumption is 66% of total corn-ethanol production energy", meaning huge new strains on natural-gas supply, pushing prices of that product higher.

Also see http://www.metamute.org/en/node/10753

I know there is some research about this in Sri Lanka, or I don't know if they have already started to implement it even. Better not.