Balancing clean water-climate change mitigation trade-offs

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dc.contributor.author Parkinson, Simon
dc.contributor.author Krey, Volker
dc.contributor.author Huppmann, Daniel
dc.contributor.author Kahil, Taher
dc.contributor.author McCollum, David
dc.contributor.author Fricko, Oliver
dc.contributor.author Byers, Edward
dc.contributor.author Gidden, Matthew J.
dc.contributor.author Mayor, Beatriz
dc.contributor.author Khan, Zarrar
dc.contributor.author Raptis, Catherine
dc.contributor.author Rao, Narasimha D.
dc.contributor.author Johnson, Nils
dc.contributor.author Wada, Yoshihide
dc.contributor.author Djilali, Ned
dc.contributor.author Riahi, Keywan
dc.date.accessioned 2019-04-21T18:07:20Z
dc.date.available 2019-04-21T18:07:20Z
dc.date.copyright 2019 en_US
dc.date.issued 2019
dc.identifier.citation Parkinson, S., Krey, V., Huppmann, D., Kahil, T., McCollum, Fricko, O.,… Riahi, K. (2019). Balancing clean water-climate change mitigation trade-offs. Environmental Research Letters, (14)1, 014009. https://doi.org/10.1088/1748-9326/aaf2a3 en_US
dc.identifier.uri https://doi.org/10.1088/1748-9326/aaf2a3
dc.identifier.uri http://hdl.handle.net/1828/10721
dc.description.abstract Energy systems support technical solutions fulfilling the United Nations' Sustainable Development Goal for clean water and sanitation (SDG6), with implications for future energy demands and greenhouse gas emissions. The energy sector is also a large consumer of water, making water efficiency targets ingrained in SDG6 important constraints for long-term energy planning. Here, we apply a global integrated assessment model to quantify the cost and characteristics of infrastructure pathways balancing SDG6 targets for water access, scarcity, treatment and efficiency with long-term energy transformations limiting climate warming to 1.5 °C. Under a mid-range human development scenario, we find that approximately 1 trillion USD2010 per year is required to close water infrastructure gaps and operate water systems consistent with achieving SDG6 goals by 2030. Adding a 1.5 °C climate policy constraint increases these costs by up to 8%. In the reverse direction, when the SDG6 targets are added on top of the 1.5 °C policy constraint, the cost to transform and operate energy systems increases 2%–9% relative to a baseline 1.5 °C scenario that does not achieve the SDG6 targets by 2030. Cost increases in the SDG6 pathways are due to expanded use of energy-intensive water treatment and costs associated with water conservation measures in power generation, municipal, manufacturing and agricultural sectors. Combined global spending (capital and operational expenditures) to 2030 on water, energy and land systems increases 92%–125% in the integrated SDG6-1.5 °C scenarios relative to a baseline 'no policy' scenario. Evaluation of the multi-sectoral policies underscores the importance of water conservation and integrated water–energy planning for avoiding costs from interacting water, energy and climate goals. en_US
dc.description.sponsorship The authors acknowledge the Global Environment Facility (GEF) for funding the development of this research as part of the Integrated Solutions for Water, Energy, and Land (ISWEL) project (GEF Contract Agreement: 6993), and the support of the United Nations Industrial Development Organization (UNIDO). The research has also been supported by the European Union's Horizon 2020 Research and Innovation Programme under grant agreement No. 642147 (CD-LINKS), the University of Victoria, and the Natural Sciences and Engineering Research Council of Canada. en_US
dc.language.iso en en_US
dc.publisher Environmental Research Letters en_US
dc.subject water–energy nexus en_US
dc.subject Sustainable Development Goals en_US
dc.subject Paris Agreement en_US
dc.subject integrated assessment modeling en_US
dc.title Balancing clean water-climate change mitigation trade-offs en_US
dc.type Article en_US
dc.description.scholarlevel Faculty en_US
dc.description.reviewstatus Reviewed en_US

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