Integrating the Water Planetary Boundary With Water Management From Local to Global Scales

16594 7 90990 2 263507 document 90990 2019EF001377.pdf application/pdf 892a26130e4893dfa3c8afb681551e93 MD5 3160090 2020-07-28 12:04:01 https://pure.iiasa.ac.at/id/eprint/16594/1/2019EF001377.pdf 16594 1 1 application/pdf text en public cc_by_4

2019EF001377.pdf

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/90990 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/90990 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/90990 archive 353 disk0/00/01/65/94 2020-07-28 12:06:15 2021-08-27 17:33:19 2020-07-28 12:06:15 article show Zipper S.C. Jaramillo F. Wang‐Erlandsson L. Cornell S.E. Gleeson T. Porkka M. Häyhä T. 8748 0000-0002-9462-0408 Crépin A.‐S. Fetzer I. Gerten D. Hoff H. Matthews N. Ricaurte‐Villota C. Kummu M. Wada Y. 8940 0000-0003-4770-2539 Gordon L. Integrating the Water Planetary Boundary With Water Management From Local to Global Scales pub prog_esm prog_wat Anthropocene; Earth Systems; cross‐scale; planetary boundaries; water cycle; water management. The planetary boundaries framework defines the "safe operating space for humanity" represented by nine global processes that can destabilize the Earth System if perturbed. The water planetary boundary attempts to provide a global limit to anthropogenic water cycle modifications, but it has been challenging to translate and apply it to the regional and local scales at which water problems and management typically occur. We develop a cross-scale approach by which the water planetary boundary could guide sustainable water management and governance at subglobal contexts defined by physical features (e.g., watershed or aquifer), political borders (e.g., city, nation, or group of nations), or commercial entities (e.g., corporation, trade group, or financial institution). The application of the water planetary boundary at these subglobal contexts occurs via two approaches: (i) calculating fair shares, in which local water cycle modifications are compared to that context's allocation of the global safe operating space, taking into account biophysical, socioeconomic, and ethical considerations; and (ii) defining a local safe operating space, in which interactions between water stores and Earth System components are used to define local boundaries required for sustaining the local water system in stable conditions, which we demonstrate with a case study of the Cienaga Grande de Santa Marta wetlands in Colombia. By harmonizing these two approaches, the water planetary boundary can ensure that water cycle modifications remain within both local and global boundaries and complement existing water management and governance approaches. 2020-02-13 published Wiley & Sons, Inc. 10.1029/2019EF001377 2923 2601 public Earth's Future 8 2 TRUE 23284277 FALSE no info:eu-repo/semantics/article