A Living 3D Printer to Transform the Desert
Magnus Larsson, a student at the Architectural Association in London, has devised an ambitious plan to create a 6,000km long sandstone wall across the Sahara Desert. The wall would provide refugee housing, and act as a barrier against the further spread of the desert. If that doesn't sound fantastic enough, Larsson plans to create this wall by seeding the Sahara with bacillus pasteurii, a microorganism that solidifies loose sand into sandstone. The microorganism will act as a kind of huge, living 3D printer, manufacturing a new landscape over thousands of years.