Paal, that's true on a global basis. But that's not how the world works.

Consider Argentina or Brazil, two big soybeans exporters with fuel consumption per capita much lower than in the US. If they turn all their soybean oil into biodiesel, possibly diverting some of the land today growing e.g. wheat to soybeans as well, they will be able to run THEIR economies more or less like they are today. Why wouldn't they?

So, people depending today on agricultural exports from other countries will have a serious problem.

Hi Beach Boy.
My post is of philosophical value only at this stage – because the world is not doing what I say it should do (damn this naughty world..:-))) – but to get the gist to my post you must be able to zoom all the worlds problems/challenges down into your own backyard – then study and see if your claims still work out..

example-
Imagine yourself confined inside a small house – You have “20 kg of corn for fuel” and “10 kg of corn for food”, and you are told you have to stay there for “a long time” …. When do you start to produce your bio-fuel… Beach Boy ? Before or after you finished your "corn for food" ....because there is actually a scooter outside, on which you are allowed to circle around the house as you please …