HORTUS — or Hydro Organisms Responsive To Urban Stimuli — is a crazy new exhibit in London made up of 325 transparent bags of algae hanging from the ceiling via a network of ropes. Long plastic tubes hang from the bags and visitors are instructed to blow into them to feed the algae — which ranges in color from dark green, to pink, to brown — with their breath. Devised by the Architectural Association School of Architecture, the crazy algae greenhouse is a way for visitors to use their own carbon emissions to foster new life.
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(Via INHABITAT.)