The efficiency ratio measures the relation between outputs from and inputs to a process. According to the WBCSD, a company wanting to become eco-efficient should strive to:

1.Reduce the material intensity of its goods and services 2.Reduce the energy intensity of its goods and services 3.Reduce the dispersion of any toxic materials 4.Enhance the recyclability of its materials 5.Maximise the sustainable use of renewable resources 6.Extend the durability of its products 7.Increase the service intensity of its goods and services Suggest measures that could be used to indicate improved efficiency in each of these areas.