Editing IPCC:AR6/WGI/Chapter-10 (section)

==== 10.5.3.3 Transdisciplinary Approaches to Stakeholder Interaction ====

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The transdisciplinary interaction with stakeholders has been categorized into top-down, bottom-up and interactive approaches ( [[#Berkhout--2013|Berkhout et al., 2013]] ). Traditional top-down approaches frame the research from the perspective of global climate change as a driver of regional climate risk. Bottom-up approaches, also referred to as scenario-neutral impact studies ( [[#Prudhomme--2010|Prudhomme et al., 2010]] ; [[#Brown--2012|]] [[#Brown--2012|A. Brown et al., 2012]] ; [[#Brown--2012|]] [[#Brown--2012|C. Brown et al., 2012]] ; [[#Culley--2016|Culley et al., 2016]] ) begin with the user’s articulation of vulnerability in the context of climatic and non-climatic stressors, follow with the definition of key system thresholds of climatic variables, and only incorporate climate data to assess the likelihood of threshold exceedances. Bottom-up approaches are special cases of robust decision-making ( [[#Lempert--2006|Lempert et al., 2006]] ; [[#Lempert--2007|Lempert and Collins, 2007]] ; [[#Walker--2013|Walker et al., 2013]] ; [[#Weaver--2013|Weaver et al., 2013]] ), which are designed to account for uncertainties not represented by climate models as well as non-climatic stressors. Interactive approaches combine aspects of top-down and bottom-up approaches. The choice of approach depends on the context. While bottom-up approaches might be optimal in a local context, where case-specific risks are addressed, top-down approaches provide generic information that may serve a range of different purposes, for example, at the national scale ( [[#Berkhout--2013|Berkhout et al., 2013]] ). All these approaches benefit from the integration of fully distilled climate information ( [[#Berkhout--2013|Berkhout et al., 2013]] ; [[#Maraun--2018b|Maraun and Widmann, 2018b]] ).

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