Download e-book for iPad: Ambiguities in Decision-oriented Life Cycle Inventories: The by Frank Werner

By Frank Werner

ISBN-10: 1402032536

ISBN-13: 9781402032530

In an environmental existence cycle evaluation of goods (LCA), an unambiguous, scientifically established, ‘objective’ attribution of fabric and effort flows to a product is natural fiction. this is often a result of basic epistemological stipulations of LCA as a modelling method lower than the complexity of our socio-economic approach. as a substitute, numerous psychological types and values consultant this attribution. This results in a useful version in a selected choice state of affairs. This ebook exhibits for the 1st time how psychological types and values impact this attribution within the existence cycle stock step of LCA. one of many key findings is that different administration principles for a sustainable use of fabrics has to be taken into consideration for the attribution of fabric and effort flows to a product. differently, development innovations prompt by means of an LCA may perhaps end up to even aggravate the environmental state of affairs if reassessed from a meta-perspective. because of this publication, the declare of unambiguitiy (‘objectivity’) of the lifestyles cycle stock needs to be deserted. A group-model construction method for LCA is built that permits one to know the choice makers' psychological versions and values within the stock research on a case- and situation-specific foundation. basically by way of this, LCA effects becomes appropriate in a decision-making method. case stories at the modelling of recycling and different end-of-life strategies of aluminium home windows and beech wooden railway sleepers in LCA supplement the methodological half. This e-book is a ‘must have’ for researchers, specialists and practitioners within the fields of decision-oriented lifestyles cycle evaluation in addition to product-related environmental administration, modelling and decision-making.

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Extra resources for Ambiguities in Decision-oriented Life Cycle Inventories: The Role of Mental Models and Values (Eco-Efficiency in Industry and Science)

Sample text

2000) propose a different perception of LCA. It consists in a radical departure from the general consensus, namely to describe ecosphere and technosphere by pure ‘objective’ elements only and to allow ‘subjective’ elements solely in the assessment step. In this alternative approach, “…it is the subjective elements that determine the view of the eco- and of the technosphere and shape the models representing them” (Hofstetter et al. 2000:162). This book very much supports the line of reasoning by Hofstetter (1998) and Hofstetter et al.

The considerable and growing body of scientific literature24 on allocation and setting system boundaries over the last years could anyhow be interpreted as conclusive evidence for the existence of subjective elements in the life cycle inventory analysis. However, the continued belief in a generic LCA-methodology (with some subjective choices) is unbroken and is manifested in various attempts in separating ‘objective’ and ‘subjective’ elements within LCA-methodology. to capture the subjective elements inherent in any decision-making, the LCA process needs to be clarified...

1996:56). This kind of systematic error is concerned with if processes held relevant for the environmental impacts of a product are considered at all. This book postulates a second source of systematic error related to the setting of system boundaries (as final defining element of an input-output model) in the life cycle inventory analysis: the reductionistic way of modelling in the life cycle inventory analysis resulting in an input-output model and the representativeness and adequacy (validity) of the model in view of the characteristics of the real material and energy flows of the socio-economic system.

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Ambiguities in Decision-oriented Life Cycle Inventories: The Role of Mental Models and Values (Eco-Efficiency in Industry and Science) by Frank Werner

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