@proditor, I think that the emergence of Smart Cities in 2060 and thereafter will be architecturally designed with sustainability and environmentalism in mind. I think that there will be vegetation everywhere not just in rural and suburban areas but also on and in the skyscrapers and cities that are built by then.
I hope it doesn't take until 2060 to get these things started, but yeah it'd be nice to see a sea of green when we look at cities. Right now from a distance our cities look like mold growth.