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Vertical farm in Vancouver, Canada

11-22-2012 15:07 BJT

A worker harvests the vegetables at the rooftop garden in Vancouver, Canada, Nov. 21, 2012.

A worker harvests the vegetables at the rooftop garden in Vancouver, Canada, Nov. 21, 2012. The North America's first vertical farm is in a greenhouse on top of a parking lot in downtown Vancouver. With 6,000-square-foot planting area, this farm can produce 150,000 pounds of vegetables every year. (Xinhua/Liang Sen)

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