Going Green With Brown and Yellow

"Picture the lobby atrium of a new, green building, one filled with leafy plants and trees. Now imagine that those trees are growing in waste collected from the building's toilets.

If that idea has the whiff of failure about it, well, sniff again. Increasingly, building designers are managing sewage in-house-really in-house. The Port of Portland, for example, is integrating waste management into the lobby of its new headquarters under construction. The Living Machine uses soil and bacteria to filter out pathogens, essentially turning wastewater into nonpotable water. But the signature element of the system is the plant life that grows up and out of it-right into the lobby."