122-Pelenc-Weak Sustainability versus Strong Sustainability

1 *The views expressed in this brief are the authors and not those of the United Nations. Online publication or dissemination does not imply endorsement by the United Nations. Brief for GSDR 2015 Weak Sustainability versus Strong Sustainability J r me Pelenc, Fund for Scientific Research (FRS-FNRS) and Free University of Brussels (ULB), Belgium J r me Ballet, University of Bordeaux, GRETHA research unit, France Tom Dedeurwaerdere, Fund for Scientific Research (FRS-FNRS) and Catholic University of Louvain (UCL), Belgium* The fundamental debate regarding sustainable development is whether we choose to adopt a Strong or a weak conception of Sustainability . Weak Sustainability postulates the full substitutability of natural capital whereas the Strong conception demonstrates that this substitutability should be severely seriously limited due to the existence of critical elements that natural capital provides for human existence and well-being.

identifying ecological thresholds and planetary boundaries but they are not sufficient on their own. Natural science research needs to be combined with social sciences and their interactions need to be embedded in a broad societal debate about (i) levels of risk acceptable to all populations (especially the

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  Boundaries, Planetary, Planetary boundaries

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