it's not just the emissions your vehicle emits, for the overall process (from the fields to out your tailpipe) you have to put in the equivilent of 5-7 times the energy that you get out of ethanol. for gasoline it is much lower.
I don't buy that. Look at all the various components that go into gasoline, and the extensive refining processes that go into each of them, all requiring a lot of energy to produce. Gasoline is a much more complicated fuel than most people think, and regional blend laws make it even more complicated. Right now, throughout the US, there's no less than a dozen or so different gasoline blends at the pumps, based on where you're located.
There's two sides to that arguement...The pro-oil people tend to think the way you are, and skew their tests accordingly, and the pro-ethanol people, still guilty of the same thing, are skewing the numbers the other way.
I look at it this way...If I can buy a fuel that's considerably cheaper than gasoline, get similar performance and driveability out of it, and support the local farmers and economy in the process, I'd be a fool not to.
Like was mentioned earlier about ethanol raising the price of food...Do you really think that the prices would go back down if people stopped producing or using ethanol? Of course not! The suppliers would just see extra profits in their pockets. Same goes with oil/gasoline...People have been buying more fuel efficient cars as of late, but the fuel prices continue to climb. Wouldn't you think based on the law of supply and demand that if we as a driving public were using less gasoline and/or diesel fuel, the price would go down? It hasn't, has it? But, the profits of the big oil companies has been setting records nearly every quarter. It doesn't take a rocket scientist to figure out what's going on.
So that brings me back to my original point...Nothing's going to change if I don't use ethanol, so I'll keep on using it, saving an average of $20+ per tankful.