half the african countries can't currently grow enough food, let alone grow
crops to produce biodiesel...

and some of the previously-productive countries are now in deep sh-1-t; i
offer you Zimbabwe as an example.

and no, I don't have an easy answer either.

Well there is one possibility. The company in East Anglia that makes the
stuff is making it from waste (ie used) cooking oil from fast food
resaraunts etc. That means it serves us twice. The trans-esterification
process required to make Bio-D means that you don't have to have virgin
oil to produce it. The only problem at present seems to be that we're
not recycling our cooking oils, and the people making Bio-D can't make
it in enough quantity to compete with the big fossil fuel companies on
price. Still, things can change. (I'm not saying that recycling old oil
will be sufficient, but it's a start.)


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