Gotta love this:
Now THAT's a farm! Check it out. And this baby produces food 24/7/365, using a tiny percentage of the water the same production would use in flat farming. (Still Sci-Fi, btw.)
On a smaller scale there is Valcent. (Full disclosure: I bought some penny shares in Valcent.)
And further pumping up my Sci-Fi sense, when we master farming vertically, we will be ready to grow greens on the moon and Mars. Gotta have your greens, SpaceBusters.
Look ahead; behind is a mess.