Industrialization plus technology introduced synthetic fertilizer, which was applied at scale and increased the amount of land that could be cultivated by a factor of three, keeping humanity alive. As long as there is no disruption to the synthetic fertilizer supply chain, we're good. China is the single largest source of phosphate, Belarus and Russia are the largest source of potash, nitrogen is a natural gas derivative, and we will lose access from Russian space and the Middle East. We will have to hack the plant genome to grow more food with less fertilizer, and it is a race whether we can improve yields genetically faster than we lose synthetic fertilizer production.