Vincent Dert 

This article describes the first universally standardized and first-principals-based method to calculate the amounts of environmental and human resources an individual can use sustainably. The sustainable available resource amount calculated for each resource type used, must be deducted from the individual’s resource consumption to calculate the net resource use of the individual’s labor output. Besides resources used, the Individual Sustainable Absorption (ISA) also depends on the amount of conservation that is applied to render the use of the resource sustainable. The same applies to restoration applied to offset current and historic damage done. The ISA calculation is the essential element of the Individual Supply Chain Step (ISCS) calculation which is in turn part of the Impact Measurement and Conservation System (IMACS). Sustainably available resource use and protection applied as well as the required amounts of restoration applied to historic damage can be calculated and must be deducted as ISA and thus removed from the supply chain. The ISA calculation allows the calculation of the excess (non-sustainable) resource use as well as the net amounts of current damage done and historic damage assigned to individuals. The ISA is calculated based on the EH-impacts of the consumption for each individual and their comparison to the EH-impacts of the consumption for a 100% sustainable (= reference) individual. The combination of the ISCS inputs and the calculated ISA, allows calculation of the environ-humane (EH) impacts of the labor output of the individual, which in turn allows the calculation of the (EH) impacts of products and services. Implementation of IMACS allows a potentially fast return to pre-industrial environmental conditions (e.g. reversal of global warming and restoration of global biodiversity and elimination of water scarcity) and allows large improvements in human conditions.