In the CNN article, Going green a growing trend among homeowners, they report that 6% of residential construction in 2008 was "green", up from 2% in 2005. Current ideas about "Green Building" can be found in a recent Smart Home exhibit at the Museum of Science and Industry in Chicago. The exhibit is actually a fully functional urban-house designed by architect Michelle Kaufmann. The design embraces concepts like using recycled materials, using sustainable building materials like bamboo flooring, conserving water, and real-time metering of power usage (i.e., a "dashboard" for home power usage).