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/
As far as I can tell everyone who has tried this has failed. The energy for the grow lights is too expensive.
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.