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Traditionally, the accounting at the actual place of production has been used  for policy decisions. For example, the Kyoto Protocol was based on the  production principle, which is now discussed to be one of the reasons for its  limited success [[HELM 2012 climate policy]]. \cite{23192129}.  Consumption based accounting (CBA), on the other hand, just recently gained  momentum for policy making [[harris symons]]. In CBA, all resource use and environmental  pressurs (for example emissions) occurring along the the supply chain of  products are added up and allocated to the final consumer of the product. This  allows for example to assess the environmental pressure caused by a domestic  demand abroad [[weinzettel, caldera, ]] \cite{Weinzettel_2013}\cite{20212122}.  Indicators based on consumption based accounting are also known as various  types of 'footprints' and are increasingly used for informing policy makers as