Let's Replace Annoying Billboards With Sky Forests of Bamboo

A new Kickstarter project is raising money to turn city billboards into suspended bamboo gardens. In areas that allow unlimited billboard construction, the side of the road can look like a peeling, rusty forest. Signs that aren’t hawking cellphone companies, fast food places or adult stores are adorned with horribly sketched toothy whales shouting YOUR AD HERE. But there is a better billboard future! Let’s put plants on them instead, creating mini hanging gardens that can purify ai...