That's a whole new intriguing subject right there. Should I move to Canada or buy stock in Reynolds Aluminum?
It might not be a dominant fuel, but perhaps hemp fuel would find a profitable niche market and be ecologically better for boats and off-road vehicles.
Hemp fuel could be used in trucking, trains and power plants. That would free up enough petroleum to lower the price of gasoline considerably. Here in the US, we pump more oil from our own wells than we import from the mideast. Hemp would allow us to break free from the mideast mess.