So, President Bush is pushing hard for ethanol to help us “end our dependence on foreign oil.” But we’re only able to raise ethanol-producing crops — specifically corn — in such abundance because we’re dousing them with petroleum-based fertilizers. (Yes, I read “The Omnivore’s Dilemma.”) So how in the world does this idea work? Yeah, I know there’s switchgrass (I also listen to the State of the Union speeches, occasionally), but could we produce anything sustainably that would genuinely make a difference? Maybe I’m just showing my ignorance, but I’ve never heard this element of the argument before. Anyone know how this reconciles? Or does it?