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In 2020, Denmark passed a substantive Climate Change Act (CCA), replacing largely symbolic legislation from 2014. Using the multiple streams framework, this contribution compares the emergence of both CCAs across the problem, policy and politics streams. Whilst new governments proposed both CCAs following elections, the levels of politicisation of climate could not have differed more. While the 2014 Act was relatively low-key, in 2020 policy change was accompanied by a citizens’ initiative campaign and subsequent political party competition on climate policies during the 2019 parliamentary elections. In a key difference, the 2020 CCA remained a political issue even after the policy change process had moved from agenda setting to decision making, whereas political momentum ebbed earlier in 2014. We conclude that the high level of politicisation of climate issues in 2019–2020 contributed greatly to a substantive CCA, but that further improvements are necessary to meet increasingly demanding mitigation targets.
Nash et al. (Sat,) studied this question.