The Greening trend is developing a momentum. Green roofs are generally applied on large building roofs.
You might think it is all too expensive?
Really, it is becoming much cheaper. the soil depth required is reduced greatly, and you just roll out the green plant carpets.
Experts in the green roof design, need to come up with simple how do do it manuals.
In the near future it will be feasible to have green grass on your balconies. Well. lets even go further. Grow your own tomatoes, and onions for that delicious pasta dish!