Made me think of a environment with no trees and they are all mobile.
Experts from co.design: The Phytokinetic Bus is painted green, has a green roof, and shuttles visitors to and from a nature reserve. More important, its creator says it’s truly sustainable transport. Very verde, and the first of its kind in the world.
Seen from the sidewalk, the extraordinary nature of the autobus is barely visible. Only a few tall weeds indicating its existence, and it would be easy to suspect your usual thin layer of greenwashing. Then you notice the actual garden, a hearty, if scrappy, plot of shrubs and (some) flowers.
More info on it: goo.gl/B9ehxL