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Recent research and real-world processes suggest that effective climate change mitigation policies are not feasible without at least a certain degree of public support. Hence, we investigate the link between existing domestic energy policies and individual policy instrument preferences in 21 European countries. We assume a policy feedback perspective and, thus, start from the idea that the current domestic energy context influences what future policies are possible and preferred by citizens. High political trust and strong climate change attitudes are expected to strengthen this relationship. Our results do not lend support to a general link between existing policies and future policy preferences. However, we find evidence of a positive policy feedback in individuals with strong climate change attitudes and/or high levels of political trust, which, depending on each country's current energy policy, either hinders or facilitates the energy transition. [ABSTRACT FROM AUTHOR]

Comparative policy studies face a number of methodological challenges where conceptualization of the object of comparison-policy output-is the most fundamental. On the basis of three common approaches of the study of policy output, we reconsider this widely applied concept and propose a refined measure as a function of both density (number of policy instruments) and intensity (content of policy instruments). We theoretically derive six policy-intensity measures (objectives, scope, integration, budget, implementation, and monitoring), which are used for weighting national policy instruments on an Index of Climate Policy Activity. The article presents an empirical application of this measurement approach. Focusing on national climate policy instruments in the energy production sector in Austria, Germany, and the United Kingdom, we investigate changes in the countries' policy portfolios from 1998 to 2010. The article demonstrates that our Index of Climate Policy Activity provides a reliable and valid measurement for national policy output that can be applied for comparative analyses of policy output. [ABSTRACT FROM AUTHOR]

Why has Europe implemented a quite-proactive climate policy while the US has adopted a far less ambitious climate strategy? Does variation in security concerns or other factors better explain this difference in policy? Using a multi-method case study approach, the authors find that in the US, constructions of climate change as a security threat play an important role in developing public support. In Europe, leadership and opportunity discourses predominate. Other factors including centralization of governance, trust in the technocratic elite, and cultural norms contribute to the variation in policy construction. [ABSTRACT FROM AUTHOR]