Water saving potentials and possible trade-offs for future food and energy supply

12902 9 71966 2 199241 document 71966 Water saving potentials and possible trade-offs for future food and energy supply.pdf application/pdf ecfd4b246d90b978e7db13917a003ffe MD5 1554122 2016-10-24 08:17:20 https://pure.iiasa.ac.at/id/eprint/12902/1/Water%20saving%20potentials%20and%20possible%20trade-offs%20for%20future%20food%20and%20energy%20supply.pdf 12902 1 1 application/pdf text en public cc_by_nc_nd

Water saving potentials and possible trade-offs for future food and energy supply.pdf

published 71967 2 199244 document 71967 lightbox.jpg image/png ecabf84a8074ca5974d66de22602d4cf MD5 53932 2016-10-24 08:17:47 https://pure.iiasa.ac.at/id/eprint/12902/2/lightbox.jpg 12902 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

lightbox.jpg

preview.jpg

medium.jpg

small.jpg

indexcodes.txt

http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/71966 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/71966 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/71966 archive 353 disk0/00/01/29/02 2016-04-25 07:08:32 2021-08-27 17:40:50 2016-04-25 07:08:32 article show Damerau K. Patt T. 7617 van Vliet O.P.R. Water saving potentials and possible trade-offs for future food and energy supply pub prog_risk prog_rpv Water-energy-food nexus; Biofuels; Natural resource management The sufficient supply of food and energy requires large amounts of fresh water. Mainly required for irrigation, but also processing and cooling purposes, water is one of the essential resources in both sectors. Rising global population numbers and economic development could likely cause an increase in natural resource demand over the coming decades, while at the same time climate change might lead to lower overall water availability. The result could be an increased competition for water resources mainly in water-stressed regions of the world in the future. In this study we explore a set of possible changes in consumption patterns in the agricultural and energy sector that could be primarily motivated by other goals than water conservation measures—for example personal health and climate change mitigation targets, and estimate the indirect effect such trends would have on global water requirements until 2050. Looking at five world regions, we investigated three possible changes regarding future food preferences, and two possible changes in future resource preferences for electricity and transport fuels. We find that while an increase in food supply as a result of higher protein demand would lead to an increase in water demand as well, this trend could be counteracted by other potential dietary shifts such as a reduction in grains and sugars. In the energy sector we find that an increasing water demand can be limited through specific resource and technology choices, while a significant growth of first-generation biofuels would lead to a drastic rise in water demand, potentially exceeding the water requirements for food supply. Looking at the two sectors together, we conclude that an overall increase in water demand for both food and energy is not inevitable and that changes in food and energy preferences could indeed lead to an alleviation of water resource use despite rising population numbers. 2016-07 published Elsevier 10.1016/j.gloenvcha.2016.03.014 227 public Global Environmental Change 39 15-25 TRUE 1872-9495 FALSE no info:eu-repo/semantics/article