Use phase of apparel: A Literature review for Life Cycle Assessment with focus on wool.

Kirsi Laitala, Ingun Grimstad Klepp & Beverley Henry

Summary

This report presents a literature review of clothing use phase. The purpose is to support improved methodological development for accounting for the use phase in Life Cycle Assessment (LCA) of apparel. All relevant textile fibres are included in the review. However, the main focus is on wool. We ask whether the use of wool has different environmental impacts than clothes in other fibres. The report builds on a review of literature from the past 20 years. The review showed that clothing made from different materials are used, and reused in different ways. Wool is washed differently as it has about ten degrees lower washing temperature than the average laundry in Europe. Wool is also more likely to be either dry-cleaned or washed by hand than other textiles. Moreover, when dried, it is less likely to be tumble-dried.

When comparing the number of days between the washes of different types of clothes, we found that respondents were likely to use their woollen products about twice as long between washes compared to their equivalent cotton products. We also found that woollen products had a longer average lifespan and were more likely to be reused or recycled. There is a lot of research-based information available concerning the use and re-use of clothing, and we believe there are sufficient results available on which to base LCA studies. Furthermore, we believe that environmental tools that compare different fibres but exclude use phase provide misleading results. Including the use phase in fibre ranking benchmark tools will improve the rigour and accuracy of these tools for all fibres, compared to reporting results for fibre production only. However, we have also shown that there are several methodological, conceptual and empirical knowledge gaps in existing literature.

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Clothing disposal habits and consequences for life cycle assessment (LCA)

Kirsi Laitala & Ingun Grimstad Klepp

Abstract

This chapter discusses the effects of end-of-life scenarios to the life cycle assessment (LCA) calculations. Consumers’ decisions in the disposal phase of clothing are crucial from an environmental point of view, as they affect the lifespan of clothing, as well as the potential for reuse and recycling. In doing this, examples of Norwegian consumers’ clothing use and disposal practices are used.

We will present statistics for the current situation in Norway as well as qualitative material on clothing disposal practices and discuss disposal methods and frequencies. Instead of assuming that all clothes are disposed of equally regardless of type of garment, person and place, the LCA analyses should be nuanced in relation to knowledge of disposal practices. Analysis also shows also that if improvements are made in facilitating reuse, clothing lifespans could easily be prolonged.

Click here to read the full article (sciencedirect.com)