Billboard Buyback

Urban Air

This is awesome:

Urban Air transforms existing urban billboards into living, suspended bamboo gardens. Embedded with intelligent technology, Urban Air becomes a global node — an open space in the urban skyline. An artwork, symbol, and instrument for a green future. Urban Air has been designed, engineered, and has secured the billboards to carry the flagship project. …Upon a successful launch, it’s our plan and intention to transform the steel and wood of outdoor advertising to the infrastructure of urban sustainability in cities around the globe — actively, publicly, and collectively generating a green global future.

{via very short list}