Building on 30+ years of cutting edge genetics and systems ecology research, we have developed (so far) 3 entirely different crops - literally capable of replacing soybeans, maize, rice, and wheat - and they grow on trees. (or woody bushes...) The effects on carbon budgets are huge; not only can the crops capture 3x more than the row crops they replace, but since no land is tilled, the costs of diesel for tractors, and the loss of soil carbon decrease dramatically. The crops exist now.