Fox,

I think that predictions over only the next 5 years loses sight of the fact that our current ethanol production and technology is rudimentary compared to what it will be like in, say, 50 years. Are there any models that try to estimate long-term trends and that factor in potential improvements in technology thru time? In the meantime, I would be happy to be even 3 percent less dependent on OPEC. Hydrogen sounds good too if they can make it work.