Emergy analysis is an environmental accounting approach which evaluates the memory of
the geobiosphere exergy (environmental work) supporting economic systems, eg to make a
product or service available via the use of natural resources. This paper presents the
software SCALE (Software for CALculating Emergy based on life cycle inventories), which
allows a rigorous and replicable calculation of the emergy associated to any product or
service. The software exploits an ad hoc algorithm, fulfilling the emergy algebra rules, which …