Imported water risk: the case of the UK

While the water dependency of water-scarce nations is well understood, this is not the case for countries in temperate and humid climates, even though various studies have shown that many of such countries strongly rely on the import of water-intensive commodities from elsewhere. In this study we introduce a method to evaluate the sustainability and efficiency of the external water footprint (WF) of a country, with the UK as an example. We trace, quantify and map the UK's direct and indirect water needs and assess the 'imported water risk' by evaluating the sustainability of the water consumption in the source regions.

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