Oh yeah, and also (replying to myself here) you can use the waste products which you get from crop production anyway -- e.g. the stalks and leaves -- so it can

Oh yeah, and also (replying to myself here) you can use the waste products which you get from crop production anyway -- e.g. the stalks and leaves -- so it can work in parallel with food production. That stuff currently has negative value -- farmers will pay you to take it off their land.