I think this is a timely issue in the world. However, the thinking sounds to follow the usual silo-based approach, which only focuses on agriculture. Fertilizers are affecting not only our agricultural system but also others sectors such as water and energy. At the same time water and energy uses are also affecting agriculture (including fertilizer use), positively and negatively. Therefore, I suggest FAO to consider water-energy-food-climate nexus in this fertilizer related analysis.
Mulugeta
Sr. Mulugeta Taye