Also it would require changing commercial buildings to industrial. I’m not an expert on this but soil weighs a lot so unless these are plant nurseries I would expect its a more expensive transition than than residential as we’re talking adding like forklift elevators and drains to everything.
There is at least one other option: Vertical Farming. I saw one of these in San Francisco go up, but there’s quite a few cities trying it out:
https://www.smithsonianmag.com/innovation/empty-office-buildings-are-being-turned-into-vertical-farms-180982502/
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Also it would require changing commercial buildings to industrial. I’m not an expert on this but soil weighs a lot so unless these are plant nurseries I would expect its a more expensive transition than than residential as we’re talking adding like forklift elevators and drains to everything.