Institutional Repository
Technical University of Crete
Technical University of Crete
EN
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EL
| URI | http://purl.tuc.gr/dl/dias/8121CF2D-D75E-4AE3-A9D1-14F26A5E4AF0 | - |
| Identifier | https://doi.org/10.1016/j.gloplacha.2019.01.013 | - |
| Identifier | https://www.sciencedirect.com/science/article/pii/S0921818118305393 | - |
| Language | en | - |
| Extent | 12 pages | en |
| Title | Global water availability under high-end climate change: a vulnerability based assessment | en |
| Creator | Koutroulis Aristeidis | en |
| Creator | Κουτρουλης Αριστειδης | el |
| Creator | Papadimitriou Lamprini V. | en |
| Creator | Gryllakis Emmanouil | en |
| Creator | Γρυλλακης Εμμανουηλ | el |
| Creator | Tsanis Ioannis | en |
| Creator | Τσανης Ιωαννης | el |
| Creator | Warren Rachel F. | en |
| Creator | Betts Richard | en |
| Publisher | Elsevier | en |
| Content Summary | Global sustainability is intertwined with freshwater security. Emerging changes in global freshwater availability have been recently detected as a combined result of human interventions, natural variability and climate change. Expected future socio-economic and climatic changes will further impact freshwater resources. The quantification of the impacts is challenging due to the complexity of interdependencies between physical and socio-economic systems. This study demonstrates a vulnerability based assessment of global freshwater availability through a conceptual framework, considering transient hydro-climatic impacts of crossing specific warming levels (1.5 °C, 2 °C and 4 °C) and related socio-economic developments under high-end climate change (RCP8.5). We use high resolution climate scenarios and a global land surface model to develop indicators of exposure for 25,000 watersheds. We also exploit spatially explicit datasets to describe a range of adaptation options through sensitivity and adaptive capacity indicators according to the Shared Socioeconomic Pathways (SSPs). The combined dynamics of climate and socio-economic changes suggest that although there is important potential for adaptation to reduce freshwater vulnerability, climate change risks cannot be totally and uniformly eliminated. In many regions, socio-economic developments will have greater impact on water availability compared to climate induced changes. The number of people under increased freshwater vulnerability varies substantially depending on the level of global warming and the degree of socio-economic developments, from almost 1 billion people at 4 °C and SSP5 to almost 3 billion people at 4 °C and SSP3. Generally, it is concluded that larger adaptation efforts are required to address the risks associated with higher levels of warming of 4 °C compared to the lower levels of 1.5 °C or 2 °C. The watershed scale and country level aggregated results of this study can provide a valuable resource for decision makers to plan for climate change adaptation and mitigation actions. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2020-06-23 | - |
| Date of Publication | 2019 | - |
| Subject | Adaptation | en |
| Subject | Global climate impacts | en |
| Subject | Vulnerability | en |
| Subject | Water resources | en |
| Bibliographic Citation | A.G. Koutroulis, L.V. Papadimitriou, M.G. Grillakis, I.K. Tsanis, R. Warren and R.A. Betts, "Global water availability under high-end climate change: A vulnerability based assessment," Glob. Planet. Change, vol. 175, pp. 52-63, Apr. 2019. doi: 10.1016/j.gloplacha.2019.01.013 | en |
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