“…The calculation procedure brings into the assessment also the past work performed by the biosphere to generate primary resources over time. By applying the emergy accounting method, it is possible to quantify how much environmental support is therefore needed to provide a unit (and hence the totality) of a product or service or economic wealth within a country (Geng et al, 2017;Odum, 1996;Sevegnani et al, 2016;Tian, 2016;Viglia et al, 2017;Yu et al, 2016;Zhong et al, 2016). The method was applied to a variety of processes and systems, including agricultural and industrial production, transport, household, waste management, and energy.…”