The reuse of renewable resources in an effort to maximize their value, reduce waste, and reduce environmental disturbance. A cycle economy, based on the economical and responsible treatment of limited resources (Seliger et al. (2001) CIRP Anns.—Manuf. Ind. 51, 1) is a key concept of today’s Japanese environmental policy (Kenichi (2002) Mining & Materials Processing Inst. Japan 118, 9). Williams and Kelly (2003) Resources, Conserv. & Recycl. 38, 2 evaluate public perception of local authority recycling, and Asomi-Boateng (2007) J. Plan. Ed. & Res. 27, 2 reports that waste-based urban cultivation in Ghana could minimize waste collection and disposal costs.