Sustainability 2013, 5(3), 955-979; doi:10.3390/su5030955
Review

Adapt or Perish: A Review of Planning Approaches for Adaptation under Deep Uncertainty

1 Faculty of Technology Policy and Management, Delft University of Technology, P.O. Box 5015, 2600 GA Delft, The Netherlands 2 Faculty of Aerospace Engineering, Delft University of Technology, P.O. Box 5015, 2600 GA Delft, The Netherlands 3 Deltares, P.O. Box 177, 2600 MH Delft, The Netherlands 4 Department of Geosciencees, Utrecht University, P.O. Box 80115, 3508 TC Utrecht, The Netherlands 5 Department of Water Engineering and Management, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
* Author to whom correspondence should be addressed.
Received: 21 November 2012; in revised form: 28 January 2013 / Accepted: 31 January 2013 / Published: 4 March 2013
(This article belongs to the Special Issue Adaptation or Extinction)
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Abstract: There is increasing interest in long-term plans that can adapt to changing situations under conditions of deep uncertainty. We argue that a sustainable plan should not only achieve economic, environmental, and social objectives, but should be robust and able to be adapted over time to (unforeseen) future conditions. Large numbers of papers dealing with robustness and adaptive plans have begun to appear, but the literature is fragmented. The papers appear in disparate journals, and deal with a wide variety of policy domains. This paper (1) describes and compares a family of related conceptual approaches to designing a sustainable plan, and (2) describes several computational tools supporting these approaches. The conceptual approaches all have their roots in an approach to long-term planning called Assumption-Based Planning. Guiding principles for the design of a sustainable adaptive plan are: explore a wide variety of relevant uncertainties, connect short-term targets to long-term goals over time, commit to short-term actions while keeping options open, and continuously monitor the world and take actions if necessary. A key computational tool across the conceptual approaches is a fast, simple (policy analysis) model that is used to make large numbers of runs, in order to explore the full range of uncertainties and to identify situations in which the plan would fail.
Keywords: sustainable adaptive plans; deep uncertainty; meta-models; robust decision making; adaptive policymaking; adaptation tipping points; adaptation pathways; dynamic adaptive policy pathways; exploratory modeling and analysis; scenario discovery

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MDPI and ACS Style

Walker, W.E.; Haasnoot, M.; Kwakkel, J.H. Adapt or Perish: A Review of Planning Approaches for Adaptation under Deep Uncertainty. Sustainability 2013, 5, 955-979.

AMA Style

Walker WE, Haasnoot M, Kwakkel JH. Adapt or Perish: A Review of Planning Approaches for Adaptation under Deep Uncertainty. Sustainability. 2013; 5(3):955-979.

Chicago/Turabian Style

Walker, Warren E.; Haasnoot, Marjolijn; Kwakkel, Jan H. 2013. "Adapt or Perish: A Review of Planning Approaches for Adaptation under Deep Uncertainty." Sustainability 5, no. 3: 955-979.

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