SOME SCIENTISTS HAVE become so excited by the work of bio-wall pioneers like Patrick Blanc that they have begun to contemplate greenifying not only the outer envelopes of buildings, but their stratified floors, as well. Specifically, if green roofs and green walls can serve positive purposes, like preventing sewage wastewater from clogging up the city’s arteries, maybe green buildings can be put to even more productive use — like solving the planet’s food crisis, perhaps?
