Reply #4: What the OP does not make clear is that it takes more energy to plan fertilize grow and harvest [View All]

[Vincardog]

energy from corn than we get back.
When you count all the energy needed to make the farm equipment it is clearly a losing proposition.

The greenhouse gas equation is not just limited to the gas emitted clearing the land it also includes the gas that the land would have removed had it not been disturbed. I believe this is the cost the OP not to clearly wants to take into account.