Chapters 1,2,4

As a new comer to the whole idea of aquaponics, I found that Bernstein explained very thoroughly the founding of aquaponics and how it differs from aquaculture and hydroponics. Thinking about aquaponics at a larger scale I'm starting to wonder a few things. One, is there a natural way to get the water from the tank back to the plants and so forth, at a larger scale like evaporation. Two, Is there any way to add plant life to the currently existing fish farms to help offset the amounts of ammonium in the water. Lastly, and this is a larger than life scale: Is there anyway to crea aquaponics at a human scale, meaning, instead of fish as the benefactors (and I understand the relationship between fish and plants) is there a way we can use the philosophy of aquaponics in our daily life? Is there some type of process  we can do as humans similar to aquaponics that can help the environment more? I'm looking forward to the next chapters.