Originally posted by: TankGuys
Originally posted by: Modelworks
Still doesn't solve the co2 problem
It would, actually. A system like that would be nearly carbon neutral. So long as you're burning currently growing crops (that subsequently get replanted to continue the cycle) the CO2 balance remains the same, since the next round of plant growth essentially reabsorbs the CO2 released from the last round.
Burning fossil fuels only increases CO2 levels because you're releasing the carbon that was otherwise locked in those fuels, that doesn't get "recycled" through new fuel source creation.