Arjen Y Hoekstra
The Water Footprint Assessment Manual: Setting the global standard – Methods for water footprint accounting by the Water Footprint Network
Posted on 21 Apr, 2011 10:14 PMThis book by Earthscan contains the global standard for ‘water footprint assessment’ as developed and maintained by the Water Footprint Network (WFN). It shows how water footprints are calculated for individual processes and products, as well as for consumers, nations and businesses. It also includes methods for water footprint sustainability assessment and a library of water footprint response options.
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. The current manual is an updated, revised and expanded version of Water Footprint Manual: State of the Art 2009, published by the WFN in November 2009 (Hoekstra et al, 2009a). This new edition has been produced after intensive consultations with partners and researchers worldwide. Directly following the publication of the Water Footprint Manual, all partners of the WFN were invited to provide feedback on the manual.
Water Footprint Manual: State of the art - A method of water footprint assessment by the Water Footprint Network (November 2009)
Posted on 11 Apr, 2010 07:37 PMThe Water Footprint Manual (2009) by the Water Footprint Network (WFN) is a comprehensive and up-to-date outline of the method of water footprint assessment. It introduces how water footprints can be calculated for individual processes and products, as well as for consumers, nations and businesses.
The concept is introduced as a comprehensive indicator of freshwater resources appropriation, as against the traditional and restricted measure of water withdrawal. The hidden water use behind products are measured over the full supply chain and water consumption volumes are measured by source and polluted volumes by type of pollution. All components of a total water footprint are specified geographically and temporally. Blue water (surface and groundwater), green water (rainwater stored in the soil as soil moisture) and grey water (polluted water) footprints are defined and are included along with the indirect water use in measuring the overall water footprints.