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|Title:||Understanding the LCA and ISO water footprint: A response to Hoekstra (2016) “A critique on the water-scarcity weighted water footprint in LCA”|
|Authors:||PFISTER STEPHAN; BOULAY ANNE-MARIE; BERGER MARKUS; HADJIKAKOU MICHALIS; MOTOSHITA MASAHARU; HESS TIM; RIDOUTT BRADLEY; WEINZETTEL JAN; SCHERER LAURA; DÖLL PETRA; MANZARDO ALESSANDRO; NÚÑEZ MONTSERRAT; VERONES FRANCESCA; HUMBERT SEBASTIEN; BUXMANN KURT; HARDING KEVIN; BENINI LORENZO; OKI TAIKAN; FINKBEINER MATTHIAS; HENDERSON ANDREW|
|Citation:||ECOLOGICAL INDICATORS vol. 72 p. 352–359|
|Publisher:||ELSEVIER SCIENCE BV|
|Type:||Articles in periodicals and books|
|Abstract:||Water footprinting has emerged as an important approach to assess water use related effects from consumption of goods and services. Assessment methods are proposed by two different communities, the Water Footprint Network (WFN) and the Life Cycle Assessment (LCA) community. The proposed methods are broadly similar and encompass both the computation of water use and its impacts, but differ in communication of a water footprint result. In this paper, we explain the role and goal of LCA and ISO-compatible water footprinting and resolve the six issues raised by Hoekstra (2016) in “A critique on the water-scarcity weighted water footprint in LCA”. By clarifying the concerns, we identify both the overlapping goals in the WFN and LCA water footprint assessments and discrepancies between them. The main differing perspective between the WFN and LCA-based approach seems to relate to the fact that LCA aims to account for environmental impacts, while the WFN aims to account for water productivity of global fresh water as a limited resource. We conclude that there is potential to use synergies in research for the two approaches and highlight the need for proper declaration of the methods applied.|
|JRC Directorate:||Sustainable Resources|
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