Questions (moved from article)[edit source]
Is organic food a realistic option? I've read (can't remember the source) that the amount of nitrogen in the protein consumed by people worldwide (directly through crops and indirectly through meat) is more than can be sustained by the land without nitrogen fertilizer. This begs the questions:
- Does this assume that people continue eating as much meat as they do now?
- Does this account for the potential of leguminous crops to fix nitrogen?[expansion needed]