More Vertical Urban Farming

Courtesy of MNDSingapore.

This intriguing item is a giant Ferris wheel  for plants. As reported at the9billion,and at NPR, this is a vertical farming unit currently commercially producing bok choy and Chinese cabbage in Singapore.
Horizontal space is at a premium, so the produce is grown inside 120 slender 30-foot towers, and is already finding their way into Singapore's grocery stores.