...more or less all aspects of science and engineering there are experts that blow away the knowledge of the folks on the "other side". And Im not saying that there arent super-bright folks on the private side too. Im just saying that not everybody in government is a dolt, yokel, imbecile, hired through some handout program to sit and do nothing but drum up worthless regulations.
And I was going to make the point that you did, which I agree very much.
Biodiesel is far more photon and resource-efficient than ethanol. I trust the energy efficiency of biodiesel having reviewed multiple analysis of it. I cannot say the same for ethanol.
Now, all that said, given the regulations, etc., it is nearly impossible to be a small-time farmer anymore (as if it wasnt always tough). We have indeed driven that business out other than in niche areas. Tempest, you dont really have farmland around LV, so you might not know beyond an internet snippit, but around here, farmland is rapidly getting converted (still) into mcmansions and townhome developments. Perhaps subsidies to some level keep some farmland still as farmland (perhaps a strategic move). I would hate to think what happens when we convert too much farmland to housing tracts, pollute the land underneath, and then have too much population to support... I suppose they WILL have to starve or attack the "haves" for bread. No?