The Business Council for Sustainable Development first investedthis coined word. The purposeof eco-efficency is to be consistent with that of sustainablitiy; however, since it is not comprehensive, it may be considered as a steppingstone towards sustainability.
The following seven eco-efficiency guidelines are commontly adopted: 1.to reduce the material intensity of goods and services; 2.to reduce the energy intensity of goods and srvices; 3.to reduce toxic dispersion; 4.to enhance material recyclability; 5.to maximise sustainable use of renewable resources; 6.to extend product durability; and 7.to increase value added by intensifying service of goods and services.