greeny folks and their idealistic world of man and environment living side by side

So I stumbled upon this idea just a moment ago and don't see why it isn't in full swing already.
Trees and plants make every space more beautiful and despite the trendy green appeal this concept could have... it would make sitting on the balcony at Rafiki's on a half-price pizza afternoon so much more enjoyable as not to be blantantly starred at by the tourists on the second level of those red bus tours.

http://inhabitat.com/2010/10/05/bus-roots-green-roofed-bus-is-a-garden-that-goes/