These 3D-printed dirt walls grow a garden when you water them

Concrete and steel—two of the most commonly used building materials—are responsible for 22% of total global emissions. To Grow A Building is a project featuring sustainable, eco-friendly structures grown from plants built using a custom-made robot specially designed to print with seeded soil. After printing, the structure gets a life of its own: the seeds sprout and grow a green facade over the walls, and inside them the dry roots - a new and strong material. 

 

Read More: Fast Company

(Thanks Bruce)