Chalmers Conferences, LCM 2013

Stefanie Markwardt, Christoph Lauwigi, Anna Hennecke, Maria Müller-Lindenlauf

Last modified: 2014-09-11


Growing demand for reliable information on sustainable abiotic resource
use is promoting efforts to develop robust impact assessment methods for
LCA purposes. This study assessed current methods to evaluate the
reliability of their safeguard objectives and requirements for inventories for
impact approaches of water and metals. Water use approaches consistently
included freshwater scarcity, whereas the depletion potential of metals
focused on varying aspects of their availability. Current inventories of
freshwater use allow an appropriate assessment, although information on
water released is still lacking. In contrast, due to inconsistent safeguard
subjects, crucial aspects of metal inventories cannot be analysed
sufficiently. Meaningful safeguard subjects and regionalised inventories are
prerequisites for reliable assessment of abiotic depletion as a profound basis
for decision makers.


abiotic resource depletion; water use; Life cycle assessment; regionalisation


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