Which is the exact reason why we should be turning away from oil for our energy needs. Solar power, wind power, hydro power, nuclear power, biodiesel, whatever...

I personally agree with rickair. The cost to farm, produce, and transport biodiesel probably offsets all the environmentally friendly aspects of using biodiesel. I think we have a better chance of switching to alternative energy for our other energy needs (cars especially). I think kerosene is going to be powering airplanes for a long time.

It is good to know there are subsidies that make biodiesel less expensive, as well as carbon regulations to make oil consuming more expensive. The free market is great in many applications, but with something as critical to our nations survival as energy, we need someone to intervene (even if it is the government).