Development of a prototype composite index for resilience and security of water-energy-food (WEF) systems in industrialised nations

Shu, Q., Scott, M. , Todman, L. and McGrane, S. J. (2021) Development of a prototype composite index for resilience and security of water-energy-food (WEF) systems in industrialised nations. Environmental and Sustainability Indicators, 11, 100124. (doi: 10.1016/j.indic.2021.100124)

Abstract

The Water-Energy-Food (WEF) nexus is a dynamic and complex system, in which the resources of water, energy, and food are inextricably linked. The system faces a number of threats including man-made hazards, e.g. overpopulation, urbanisation, ageing population, terrorism and geopolitical upheaval, and natural hazards such as climate change and extreme weather events. General indicators for the WEF nexus provide information on current access and availability of water, energy and food to a population. However, in industrialised nations such as the UK, such information is often masked by the consistently high access and availability of WEF resources. This paper proposes a composite WEF resilience index formed by aggregating two sets of indicators: one representing the availability level of WEF resources in terms of three WEF sectors; and the other representing population access to the resources at the household level. The WEF availability and the household accessibility indicators were calculated separately within the water, energy, food, and household sectors. Within each sector, an Analytical Hierarchical Process (AHP) was used for weighting sub-indicators based on experts’ evaluation of the relative importance among the sub-indicators. This allowed us to synthesize individual opinions using expertise level in a group decision-making framework. A pilot study was performed on the UK WEF nexus to measure resilience in recent times. This prototype composite index can be used for exploring the resilience of the WEF systems to shocks and changes in the presence of high WEF access and availability.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: McGrane, Dr Scott and Scott, Professor Marian
• Authors: Shu, Q., Scott, M., Todman, L., and McGrane, S. J.
• College/School: College of Science and Engineering > School of Mathematics and Statistics > Statistics
• Journal Name: Environmental and Sustainability Indicators
• Publisher: Elsevier
• ISSN: 2665-9727
• ISSN (Online): 2665-9727
• Published Online: 21 May 2021
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in Environmental and Sustainability Indicators 11: 100124
• Publisher Policy: Reproduced under a Creative Commons License

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
172066		WEF WEBs mapping the water food energy nexus	E Marian Scott	Engineering and Physical Sciences Research Council (EPSRC)	EP/N005600/1	M&S - Statistics