When space is tight and the demand for food is high, vertical farms might be the best answer. Check out this piece from PBS on the subject.
Here are some fun facts about vertical farms. If you are interested in building your own vertical farm, https://homesteaderdepot.com/supports-for-vertical-gardens-infographic/here are some alternative or unique supports you could use to get started.
How to get started with Aquaponics.
