Living within the safe and just Earth system boundaries for blue water

Stewart-Koster, Ben; Bunn, Stuart E.; Green, Pamela; Ndehedehe, Christopher; Andersen, Lauren; Armstrong McKay, David I.; Bai, Xuemei; DeClerck, Fabrice; Ebi, Kristie L.; Gordon, Christopher; Gupta, Joyeeta; Hasan, Syezlin; Jacobson, Lisa; Lade, Steven J.; Liverman, Diana; Loriani, Sina; Mohamed, Awaz; Nakicenovic, Nebojsa; Obura, David; Qin, Dahe; Rammelt, Crelis; Rocha, Juan C.; Rockström, Johan; Verburg, Peter H.; Zimm, Caroline

doi:10.1038/s41893-023-01247-w

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学術論文

Living within the safe and just Earth system boundaries for blue water

Authors

Stewart-Koster, Ben
External Organizations;

Bunn, Stuart E.
External Organizations;

Green, Pamela
External Organizations;

Ndehedehe, Christopher
External Organizations;

/persons/resource/andersen

Andersen, Lauren
Potsdam Institute for Climate Impact Research;

Armstrong McKay, David I.
External Organizations;

Bai, Xuemei
External Organizations;

DeClerck, Fabrice
External Organizations;

Ebi, Kristie L.
External Organizations;

Gordon, Christopher
External Organizations;

Gupta, Joyeeta
External Organizations;

Hasan, Syezlin
External Organizations;

Jacobson, Lisa
External Organizations;

Lade, Steven J.
External Organizations;

Liverman, Diana
External Organizations;

/persons/resource/sina.loriani

Loriani, Sina
Potsdam Institute for Climate Impact Research;

Mohamed, Awaz
External Organizations;

Nakicenovic, Nebojsa
External Organizations;

Obura, David
External Organizations;

Qin, Dahe
External Organizations;

Rammelt, Crelis
External Organizations;

Rocha, Juan C.
External Organizations;

/persons/resource/johan.rockstrom

Rockström, Johan
Potsdam Institute for Climate Impact Research;

Verburg, Peter H.
External Organizations;

Zimm, Caroline
External Organizations;

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28978oa.pdf
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引用

Stewart-Koster, B., Bunn, S. E., Green, P., Ndehedehe, C., Andersen, L., Armstrong McKay, D. I., Bai, X., DeClerck, F., Ebi, K. L., Gordon, C., Gupta, J., Hasan, S., Jacobson, L., Lade, S. J., Liverman, D., Loriani, S., Mohamed, A., Nakicenovic, N., Obura, D., Qin, D., Rammelt, C., Rocha, J. C., Rockström, J., Verburg, P. H., & Zimm, C. (2024). Living within the safe and just Earth system boundaries for blue water. Nature Sustainability, 7, 53-63. doi:10.1038/s41893-023-01247-w.

引用: https://publications.pik-potsdam.de/pubman/item/item_28978

要旨

Safe and just Earth system boundaries (ESBs) for surface water and groundwater (blue water) have been defined for sustainable water management in the Anthropocene. Here we assessed whether minimum human needs could be met with surface water from within individual river basins alone and, where this is not possible, quantified how much groundwater would be required. Approximately 2.6 billion people live in river basins where groundwater is needed because they are already outside the surface water ESB or have insufficient surface water to meet human needs and the ESB. Approximately 1.4 billion people live in river basins where demand-side transformations would be required as they either exceed the surface water ESB or face a decline in groundwater recharge and cannot meet minimum needs within the ESB. A further 1.5 billion people live in river basins outside the ESB, with insufficient surface water to meet minimum needs, requiring both supply- and demand-side transformations. These results highlight the challenges and opportunities of meeting even basic human access needs to water and protecting aquatic ecosystems.