3D printing an entire building doesn't make sense yet, but watch this video and you'll start to think that it may not be that far off.
Kelsey Campbell-Dollaghan at Gizmodo reports on a group of Italian engineers and researchers who originally wanted to design a printer that produced full homes before changing their vision:
Now, WASProject focuses on printing specific pieces of buildings and bridges—the structural beams—that usually require the most heavy and CO2-producing concrete. “Concrete is bad for the planet,” the group explains. “A ton of cement generates a ton of Co2.”