Gingerale wrote:sometimes I wonder what could be used to grow food if we became a futuristic desert world.
Futuristic desert "worlds" can be found in the UAE, Abu Dhabi, etc. (ultra-oil-rich modern desert cities).
Essentially all that's needed to grow food is water, carbon dioxide, and an energy source (think hydroponics). Like most human problems, it's a cost problem. Tech can solve most things, but it's the cost that holds us back.
