Water footprints of cities indicators for sustainable consumption and production

Water footprints have been proposed as sustainabilityindicators, relating the consumption of goods likefood to the amount of water necessary for their productionand the impacts of that water use in the source regions. Wefurther developed the existing water footprint methodology,by globally resolving...

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Main Authors: Hoff, H., Döll, P., Fader, M., Gerten, D., Hauser, S., Siebert, S.
Format: Journal Article
Language:Inglés
Published: Copernicus GmbH 2014
Subjects:
Online Access:https://hdl.handle.net/10568/75900
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author Hoff, H.
Döll, P.
Fader, M.
Gerten, D.
Hauser, S.
Siebert, S.
author_browse Döll, P.
Fader, M.
Gerten, D.
Hauser, S.
Hoff, H.
Siebert, S.
author_facet Hoff, H.
Döll, P.
Fader, M.
Gerten, D.
Hauser, S.
Siebert, S.
author_sort Hoff, H.
collection Repository of Agricultural Research Outputs (CGSpace)
description Water footprints have been proposed as sustainabilityindicators, relating the consumption of goods likefood to the amount of water necessary for their productionand the impacts of that water use in the source regions. Wefurther developed the existing water footprint methodology,by globally resolving virtual water flows from production toconsumption regions for major food crops at 5 arcmin spatialresolution. We distinguished domestic and internationalflows, and assessed local impacts of export production. Applyingthis method to three exemplary cities, Berlin, Delhiand Lagos, we find major differences in amounts, composition,and origin of green and blue virtual water imports,due to differences in diets, trade integration and crop waterproductivities in the source regions. While almost all ofDelhi’s and Lagos’ virtual water imports are of domestic origin,Berlin on average imports from more than 4000 km distance,in particular soy (livestock feed), coffee and cocoa.While 42% of Delhi’s virtual water imports are blue waterbased, the fractions for Berlin and Lagos are 2 and 0.5 %, respectively,roughly equal to the water volumes abstracted inthese two cities for domestic water use. Some of the externalsource regions of Berlin’s virtual water imports appear tobe critically water scarce and/or food insecure. However, forderiving recommendations on sustainable consumption andtrade, further analysis of context-specific costs and benefitsassociated with export production will be required.
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spelling CGSpace759002025-11-11T10:01:04Z Water footprints of cities indicators for sustainable consumption and production Hoff, H. Döll, P. Fader, M. Gerten, D. Hauser, S. Siebert, S. virtual water production consumption Water footprints have been proposed as sustainabilityindicators, relating the consumption of goods likefood to the amount of water necessary for their productionand the impacts of that water use in the source regions. Wefurther developed the existing water footprint methodology,by globally resolving virtual water flows from production toconsumption regions for major food crops at 5 arcmin spatialresolution. We distinguished domestic and internationalflows, and assessed local impacts of export production. Applyingthis method to three exemplary cities, Berlin, Delhiand Lagos, we find major differences in amounts, composition,and origin of green and blue virtual water imports,due to differences in diets, trade integration and crop waterproductivities in the source regions. While almost all ofDelhi’s and Lagos’ virtual water imports are of domestic origin,Berlin on average imports from more than 4000 km distance,in particular soy (livestock feed), coffee and cocoa.While 42% of Delhi’s virtual water imports are blue waterbased, the fractions for Berlin and Lagos are 2 and 0.5 %, respectively,roughly equal to the water volumes abstracted inthese two cities for domestic water use. Some of the externalsource regions of Berlin’s virtual water imports appear tobe critically water scarce and/or food insecure. However, forderiving recommendations on sustainable consumption andtrade, further analysis of context-specific costs and benefitsassociated with export production will be required. 2014 2016-07-04T08:15:18Z 2016-07-04T08:15:18Z Journal Article https://hdl.handle.net/10568/75900 en Open Access application/pdf Copernicus GmbH Hoff, H., Döll, P., Fader, M., Gerten, D., Hauser, S. & Siebert, S. (2014). Water footprints of cities–indicators for sustainable consumption and production. Hydrology and Earth System Sciences, 18(1), 213-226.
spellingShingle virtual water
production
consumption
Hoff, H.
Döll, P.
Fader, M.
Gerten, D.
Hauser, S.
Siebert, S.
Water footprints of cities indicators for sustainable consumption and production
title Water footprints of cities indicators for sustainable consumption and production
title_full Water footprints of cities indicators for sustainable consumption and production
title_fullStr Water footprints of cities indicators for sustainable consumption and production
title_full_unstemmed Water footprints of cities indicators for sustainable consumption and production
title_short Water footprints of cities indicators for sustainable consumption and production
title_sort water footprints of cities indicators for sustainable consumption and production
topic virtual water
production
consumption
url https://hdl.handle.net/10568/75900
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