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    Evaluating the environmental dimension of material efficiency strategies relating to the circular economy.

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    Authors
    Walker, Stuart cc
    Coleman, Nick
    Hodgson, Peter
    Collins, Nicola
    Brimacombe, Louis
    Affiliation
    University of Sheffield
    Tata Steel
    Savills Property Management
    Issue Date
    2018-03-01
    
    Metadata
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    Abstract
    Material efficiency is a key element of new thinking to address the challenges of reducing impacts on the environment and of resource scarcity, whilst at the same time meeting service and functionality demands on materials. Directly related to material efficiency is the concept of the Circular Economy, which is based on the principle of optimising the utility embodied in materials and products through the life-cycle. Although materials such as steel, on account of high recycling rates at end-of-life, are amongst the most ‘circular’ of manufactured materials, significant opportunities for greater material efficiency exist, which are yet to be widely implemented. Life Cycle Assessment (LCA) is commonly used to assess the environmental benefits of recovering and recycling materials through the manufacturing supply chain and at end-of-life. Using an example taken from renewable energy generation, this paper explores the correlation between product circularity and the environmental case for strategies designed to improve material efficiency. An LCA-based methodology for accounting for the recovery and reuse of materials from the supply chain and at end-of-life is used as the basis for calculating the carbon footprint benefits of five material efficiency scenarios. The results are compared with a number of proposed material circularity indicators. Two conclusions from this exercise are that (i) LCA methodologies based around end-of-life approaches are well placed for quantifying the environmental benefits of material efficiency and circular economy strategies and (ii) when applying indicators relating to the circularity of materials these should also be supported by LCA-based studies.
    Citation
    Walker, S. et al. (2018) ‘Evaluating the environmental dimension of material efficiency strategies relating to the circular economy’, Sustainability, 10(3), 666. doi: 10.3390/su10030666
    Publisher
    MDPI
    Journal
    Sustainability
    URI
    http://hdl.handle.net/10545/623256
    DOI
    10.3390/su10030666
    Additional Links
    http://www.mdpi.com/2071-1050/10/3/666
    Type
    Article
    Language
    en
    ISSN
    2071-1050
    ae974a485f413a2113503eed53cd6c53
    10.3390/su10030666
    Scopus Count
    Collections
    Institute for Innovation in Sustainable Engineering

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