Planetary Boundaries: Exploring the Safe Operating Space ...

Copyright 2009 by the author(s). Published here under license by the Resilience m, J., W. Steffen, K. Noone, . Persson, F. S. Chapin, III, E. Lambin, T. M. Lenton, M. Scheffer,C. Folke, H. Schellnhuber, B. Nykvist, C. A. De Wit, T. Hughes, S. van der Leeuw, H. Rodhe, S. S rlin, Snyder, R. Costanza, U. Svedin, M. Falkenmark, L. Karlberg, R. W. Corell, V. J. Fabry, J. Hansen, , D. Liverman, K. Richardson, P. Crutzen, and J. Foley. 2009. Planetary Boundaries: Exploring thesafe Operating Space for humanity. Ecology and Society 14(2): 32. [online] URL: Boundaries: Exploring the Safe Operating Space for HumanityJohan Rockstr m 1,2, Will Steffen 1,3, Kevin Noone 1,4, sa Persson 1,2, F.

Units); biogeochemical nitrogen (N) cycle (limit industrial and agricultural fixation of N 2 to 35 Tg N yr-1) and phosphorus (P) cycle (annual P inflow to oceans not to exceed 10 times the natural background weathering of P); global freshwater use (<4000 km3 yr-1 of consumptive use of runoff resources); land

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  Cycle, Exploring

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