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Traditional rooftops, covered in asphalt and tar, create heat-absorbing surfaces that contribute to the "urban heat island" effect—higher temperatures that can alter weather patterns and intensify smog. A layer of ground cover on this building's roof helps to regulate temperature, protects waterproof coatings, and absorbs and cleans storm water.
Building for the children Architect William McDonough talks about what drives his artful eye, in this online video. (more) VIDEO
Next year's models On a recent prowl through Tokyo's electronic alleyways, our tech guru was drawn to six stylish products. None is available in the U.S., but that may just be a matter of time. (more)