Do you guys have any resources or thoughts on predicted phosphorus shortages leading to food insecurity?

I'm curious about this. I've seen the typical figures thrown around about how "there will be X many people in X many years but production will not match the growth", but I'm skeptical because I don't know if that's based on the continuation of current levels of production (overproduction) or what, and its also skewed towards the whole narrative eco-fascists like to use that there will be too many people and not enough resources in the near future.