Swedish-American company Plantagon have come up with an idea is to build greenhouses to use within urban environments that will make cities self-supporting.
The Plantagon® greenhouse will dramatically change the way we produce organic and functional food. It allows us to produce ecological with clean air and water inside urban environments, even major cities, cutting costs and environmental damage by eliminating transportation and deliver directly to consumers. This is due to the efficiency and productivity of the Plantagon® greenhouse which makes it economically possible to finance each greenhouse from its own sales.
According to Plantagon, the plan is to have the first greenhouse operational within three years.
[via Below the Clouds]