Why biocement could become America’s next big bumper crop
The Bio-Block Spiral is a small, short wall, but it may be a bulwark against a giant threat: climate change. The curved, mud-colored structure is part of the current Chicago Architecture Biennial, entitled “Rehearsing the Future.” Unlike the artists’ installations filling the city’s downtown exhibit halls, the Bio-Block Spiral rises as a tight 15-foot-tall circle of concrete blocks outside the entrance to an office building that’s away from the action. Perhaps that’s because the wall’s chief creators aren’t artists.…