Nicely made infographic from steelconstruction.info wiki. What happens to the building materials on demolition, how much of concrete, timber and steel can be recycled?
Artist Alberto Frigo took a picture of every object he used with his right hand for the past 11 years. Averaging 76 photos per day, the project — Images of the artifact used by the main hand — is low-tech, with just a small, hand-held camera. No internet connection, tagging, or documentation. Just a stream of photos.