A shared standard on definitions and calculation methods is crucial given the rapidly growing interest in companies and governments to use water footprint accounts as a basis for formulating sustainable water strategies and policies.

In addition, a number of partners initiated pilot projects in collaboration with the WFN that aimed at exploring the practical implications of using the water footprint in formulating a corporate water strategy or water policy in a specific geographical setting. On the basis of feedbacks received – new scientific publications, experiences from practical water footprint pilots and working group reports – the WFN prepared a draft of this edition.

All over the world research in this area is rapidly developing and more and more pilot studies on water footprint assessment are initiated, across all sectors of economy and covering all continents. In order to learn from the various ongoing practical water footprint pilot projects and from expected new scientific publications, the WFN invites both partners and non-partners to provide feedback on this edition of the manual.

We aim to further refine the water footprint methodology so that it best serves the various purposes that different sectors in society see for it, at the same time striving for coherence, consistency and scientific scrutiny.

This manual is available in English, Portuguese and Chinese.

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