Re: AC AC utter bollocks
Lets get one thing straight.
The world is a messed up place, and it is beyond doubtful that a move to bio-diesel will somehow make everyone happy sharing non-violent individuals. So lets stick with the real world.
It's rather strange that you call people Greenpeckers and show a disdain for Socialists, and yet here you are implying that we could/should share out all the food evenly. "If all the food in the world were shared out evenly, there would be enough to go around....."
Of course the intelligent capitalists and savvy socialists among us will quickly realise that the whole point of capitalism is making money from inequalities in supply and demand. Some companies even go to the trouble of artificially limiting supply so as to attain a better return on investment. So what makes you think that the agriculture industry isn't interested in ROI? Likewise you mention overproduction, but fail to appreciate it's causes and lets not even approach the subject of land suitability.
Seems to me that you're a closet Socialist that has plans to put the wrongs of the capitalist system to right and create a world socialist republic based upon a universal love of Bio-Diesel and altruistic food sharing.
Back in the real world we are faced with a reality that if we move towards a bio-diesel future the costs of food will go up and these costs will fall disproportionately upon the poor. The knowledgeable among us will not have missed the irony of Ethiopia exporting food during the famines of the 1980's.
But it's not just about the poor ... plantation farming and alien crops has wide ranging impact upon wildlife as wilderness is reduced and monocultures limit species diversity ... and of course increased demands upon water further impacts upon its free availability to wildlife.
I'm also pretty sure that some people will have also figured out that world meat consumption is rising and that requires even more land and water, not just for the livestock but to also produce the food they're fed.
I'm guessing that you don't mind if the poor don't eat meat because they wont be able to afford it, nor will you care if they can't afford the locally grown crops destined for export to be used as bio-fuel. They can always eat carrot tops eh!
While hydroponics solves some problems you haven't really thought about the energy costs and you also completely failed when considering the nitrogen fertiliser required for hydroponic production ... the manufacture of nitrogen fertiliser is of course energy intensive and an inefficient use of a limited fossil fuel, oil!
What about the extra energy required for the running of the hydroponics lights, pumps ... will they be powered from bio-diesel generators?
You also haven't taken into account the rising number of cars in the world and the potential numbers once India, China and Africa get into swing.