This Photosynthetic Algae Roof Filters the Neighborhood Air

Let's take rooftop farming to a whole new level—a microscopic level. Unveiled at Expo Milan this week, the Urban Algae Canopy is a living, breathing alternative to our inert roofs and facades. Could algae be the next hip trend in urban agriculture?

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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/pj_jOEm2ERY/this-photosynthetic-algae-roof-filters-the-neighborhood-1563515803
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