Vertical Forest in Milan

Source: http://www.zmescience.com/ecology/milans-vertical-forest-towers/

See also: http://www.architizer.com/en_us/blog/dyn/71460/green-architects-takes-big-leap-with-milans-vertical-forest/
"The world’s first vertical forest (trademark?) is rising in Milan. The Bosco Verticale, the project’s official title, will be completed later this year, marking a significant step in development of green architecture. The plan consists of two apartment towers festooned with a series of concrete decks, staggered and offset from each other to give the structures their Jenga-like appearance. Once completed, nearly 2.5 acres of “forest” will have been planted in these balconies, helping to absorb dust—a major problem in Milan—and C02, while shading and cooling the residents within."