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Assessing regional and global water footprints for the UK

Author

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  • Yu, Yang
  • Hubacek, Klaus
  • Feng, Kuishuang
  • Guan, Dabo

Abstract

The concept of the water footprint has been recently introduced as an important indicator for human-induced water consumption. The water footprint is defined as the total volume of water used during production and consumption of goods and services as well as direct water consumption by humans. Water is not only consumed directly but also indirectly in production processes. Therefore, calculating the water footprint enables us to quantify total water consumed along the whole global supply chain. In this paper, we develop a regional input-output (IO) model extended by water consumption coefficients to quantify the respective domestic water footprint for different consumption categories for the South-East and North-East of England and the UK, i.e. the water consumed directly and indirectly along the regional supply chain. In addition, we calculate the total water footprints which include both domestic water consumption and the water required in other countries to produce goods and services imported and consumed in the region under investigation through applying a multi-regional input-output (MRIO) model. Both footprints also include households' direct consumption of water. With regards to the two regions, we can observe a very pronounced regional disparity of regional (domestic and total) water footprints between the relatively water-scarce South-East and the water-rich North-East of England. We find that the domestic water footprint per capita in the South-East is 22% higher than the domestic water footprint per capita in the North-East. The key water consumers include Agriculture, Food Products, Electricity and Gas Production, and Hotel and Catering. The total water footprints per capita in the South-East (1257Â m3/year) are more than twice the ones in the North-East (597Â m3/year). The domestic water footprint focuses only on the supply chain effects and associated water consumption within the regional boundaries, which are usually of higher interest to policy makers and water companies concerned with the balance of supply and demand of water resources within their respective administrative boundaries or watersheds. The total water footprint allows assessing global effects and supports global supply chain management and is also introducing notions of fairness and equity in terms of resource consumption.

Suggested Citation

  • Yu, Yang & Hubacek, Klaus & Feng, Kuishuang & Guan, Dabo, 2010. "Assessing regional and global water footprints for the UK," Ecological Economics, Elsevier, vol. 69(5), pages 1140-1147, March.
    • Handle: RePEc:eee:ecolec:v:69:y:2010:i:5:p:1140-1147
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    References listed on IDEAS

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