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  A planetary boundary for green water

Wang-Erlandsson, L., Tobian, A., van der Ent, R. J., Fetzer, I., te Wierik, S., Porkka, M., Staal, A., Jaramillo, F., Dahlmann, H., Singh, C., Greve, P., Gerten, D., Keys, P. W., Gleeson, T., Cornell, S. E., Steffen, W., Bai, X., Rockström, J. (2022): A planetary boundary for green water. - Nature Reviews Earth & Environment, 3, 6, 380-392.
https://doi.org/10.1038/s43017-022-00287-8

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Wang-Erlandsson, L.1, Author
Tobian, Arne2, Author              
van der Ent, R. J.1, Author
Fetzer, I.1, Author
te Wierik, S.1, Author
Porkka, M.1, Author
Staal, A.1, Author
Jaramillo, F.1, Author
Dahlmann, H.1, Author
Singh, C.1, Author
Greve, P.1, Author
Gerten, Dieter2, Author              
Keys, P. W.1, Author
Gleeson, T.1, Author
Cornell, S. E.1, Author
Steffen, W.1, Author
Bai, X.1, Author
Rockström, Johan2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

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 Abstract: Green water — terrestrial precipitation, evaporation and soil moisture — is fundamental to Earth system dynamics and is now extensively perturbed by human pressures at continental to planetary scales. However, green water lacks explicit consideration in the existing planetary boundaries framework that demarcates a global safe operating space for humanity. In this Perspective, we propose a green water planetary boundary and estimate its current status. The green water planetary boundary can be represented by the percentage of ice-free land area on which root-zone soil moisture deviates from Holocene variability for any month of the year. Provisional estimates of departures from Holocene-like conditions, alongside evidence of widespread deterioration in Earth system functioning, indicate that the green water planetary boundary is already transgressed. Moving forward, research needs to address and account for the role of root-zone soil moisture for Earth system resilience in view of ecohydrological, hydroclimatic and sociohydrological interactions.

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Language(s): eng - English
 Dates: 2022-03-012022-04-262022-06
 Publication Status: Finally published
 Pages: 13
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: PIKDOMAIN: RD1 - Earth System Analysis
PIKDOMAIN: Director / Executive Staff / Science & Society
Organisational keyword: RD1 - Earth System Analysis
Organisational keyword: Director Rockström
MDB-ID: yes - 3343
Research topic keyword: Freshwater
Research topic keyword: Planetary Boundaries
Regional keyword: Global
Model / method: LPJmL
DOI: 10.1038/s43017-022-00287-8
 Degree: -

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Title: Nature Reviews Earth & Environment
Source Genre: Journal, other
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 3 (6) Sequence Number: - Start / End Page: 380 - 392 Identifier: Other: 2662-138X
CoNE: https://publications.pik-potsdam.de/cone/journals/resource/nature-reviews-earth-environment
Publisher: Springer Nature