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The WULCA consensus characterization model for water scarcity footprints: assessing impacts of water consumption based on available water remaining (AWARE)

Published on Feb 1, 2018in International Journal of Life Cycle Assessment4.868
· DOI :10.1007/S11367-017-1333-8
Anne-Marie Boulay17
Estimated H-index: 17
(École Polytechnique de Montréal),
Jane C. Bare25
Estimated H-index: 25
(EPA: United States Environmental Protection Agency)
+ 11 AuthorsStephan Pfister34
Estimated H-index: 34
(ETH Zurich)
Sources
Abstract
Purpose Life cycle assessment (LCA) has been used to assess freshwater-related impacts according to a new water footprint framework formalized in the ISO 14046 standard. To date, no consensus-based approach exists for applying this standard and results are not always comparable when different scarcity or stress indicators are used for characterization of impacts. This paper presents the outcome of a 2-year consensus building process by the Water Use in Life Cycle Assessment (WULCA), a working group of the UNEP-SETAC Life Cycle Initiative, on a water scarcity midpoint method for use in LCA and for water scarcity footprint assessments.
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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-com...
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