Vertically challenged
On behalf of BBC Future Planet, William Park poses a question that I suspect few have pondered: How far can vertical farming go?
There may be an answer within the article, but it was simply too long and uninteresting to read. So I guess it comes down to: how much vertical have you got?
(shrug)
What goes up is often fated to come down. Perhaps there's just not enough vertical after all. (whatever)