This novel methods grows
certain types of greenery sideways, by enclosing the earth behind a plastic
foil, and adding an integrated watering system. Unlike Ivory, which takes
decades to cover buildings, the Biolungs, green from the start, are put
up instantly with the building. Together with bikepaths on top of the tubes,
they fullfill ecological goals easing acceptance of Hallitubes. Images
below are from World Expo 2005 in Aichi, Japan. In the lower image, note
the small person on the left side for perspective.
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