As food prices continue to rise all over the world, causing shortages and riots in some areas, many are questioning the wisdom of diverting food crops to produce fuel. I, personally, would strongly question the wisdom of subsidizing corn ethanol in the US and mandating its use. Environmentalists always act as if there is no opportunity cost imposed by their recommendations As we see here, there is a huge cost imposed. Just this one little part of "fighting global warming" already has people starving and rioting in the streets. Most of these biofuels are a complete waste of money and don't even really benefit the enviroment in any way. It's utterly absurd. Personally, I'm more concerned about the world being destroyed by an asteroid than global warming. I mean, global warming is on the list. It's just down there below asteroid impact. It's also way below feeding everyone. Way, way, way below that.