I found these kind of cool as an idea, as they can be added rather easily to existing cities and provide some greenery without taking up space, while providing shade:
I found these kind of cool as an idea, as they can be added rather easily to existing cities and provide some greenery without taking up space, while providing shade:
plants give you a better microclimate than just a canvas, because of the controlled evaopration of water. + the air smells nicer with plants around