Another tool, called Portico, tracks the health of materials used in buildings. Google has used it internally in about 200 of its own buildings. “If you envision this world in which you’re endlessly cycling materials back into the system, it’s really critical that you know what’s in them, and that you know there’s nothing harmful,” says Brandt. Digital tools can also be used to create online marketplaces for reused building materials.

Source: Cities Need To Transition To Circular Economies: Google Wants To Help – The future of business