Color in the city

A problem with cities is sometimes that after you tear down all of the forests, valleys and other wild to make room for your buildings there never is that much color left in it. Of course you have the trees placed along the sides of the street to accent and make it look somewhat nice however it will never replace what you tore down. The occasional park does little to soak up all the Co2 emissions and storm water that collects all the dirt and grime from the streets and buildings.  A great and beautiful trend is the ability of rooftop gardens on most buildings. This provides people a place to escape the harsh grind of city life and enjoy the simply pleasure of feeling grass against your skin and the smell of plants that most suburban dwellers take for granted. Not only does it provide pleasure to the senses but it also helps clean up storm water and cleans the air around it more efficiently.