Pigeons crap. Humans clean. Let’s merge the two, why don’t we? That’s the idea of Belgian-born designer Tuur Van Balen, who's on a mission to turn feral pigeon feces into detergent. You read that right. By feeding pigeons a metabolism-altering bacteria, then getting them to defecate in a designated box, Van Balen reckons he can create soap suitable for washing dirty windows, sticky floors, and, yes, even pigeon turd on the awning. Think of it as a closed-loop system for one of the city’s most irritating (and plentiful) natural resources.
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