REVIEW OF METHODOLOGIES OF WATER FOOTPRINT.

Gara Takawira

doi:10.21474/ijar01/4071

Abstract

REVIEW OF METHODOLOGIES OF WATER FOOTPRINT.

Highlights

Environmental impact of using water in producing and consuming goods and services
The plain starting point and methodology is stated as follows; WFtotal = WFgreen + WFblue + WFgrey where; WFtotal is the total water footprint WFgreen is the rainwater to produce a product WFblue is surface and ground water required for the production of good or service WFgrey is water for pollution assimilation depending on ambient water quality standards
The results found were presented in form of water use efficiency in different climatic localities which makes the method useful in choosing crops to grow in different areas for maximum water use efficiency (Su et al, 2015 and Chouchane et al, 2015)

Summary

Introduction

Environmental impact of using water in producing and consuming goods and services. In this article, the different methodologies of calculating water footprint (WF) are reviewed with an aim of deciding their possible applications in everyday life. As the water footprint concept is gaining significant momentum, there have been growing calls to standardise the calculation methodologies to make the obtained data more useful, both as a policy and as a research tool (Hoekstra, 2011). The usefulness of Ridoutt and Pfister (2010) method in estimating the local, regional and global water stress will be limited due to its conservative approach as it leaves out the green water aspect.

Results

Conclusion