ABSTRACT The ways in which green neighbourhoods have developed over recent decades has become increasingly globalized, driven by the challenges of climate change and the globalization of knowledge exchange including a shift towards quantified approaches of carbon control. As a result, cities do not only share knowledge, experiences and practices but also compare and compete with each other in their pursuit of sustainability leadership. To understand the emergence and establishment of certain approaches over others, policy mobilities research has emphasized the role of certain actors and institutions in promoting, mobilizing, adapting and mutating policy models, practices and knowledge. This paper extends the policy mobility literature by emphasizing the temporal dimension of green neighbourhood development. We reconstruct and compare trajectories of four green neighbourhood developments in Freiburg, Vancouver and Luxembourg in terms of ‘extroverted’ dimensions that focus beyond the city, and ‘introverted’ dimensions that are more localized in nature. Findings highlight the relational character of the role and meaning of these green neighbourhoods over time that reflect a global shift in how green urbanism is conceptualized and put into practice.

中文翻译：

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城市绿色社区的全球-地方紧张局势：弗莱堡、温哥华和卢森堡的话语变革的政策流动方法

摘要 在气候变化挑战和知识交流全球化（包括向碳控制量化方法的转变）的推动下，近几十年来绿色社区的发展方式日益全球化。因此，城市不仅共享知识、经验和实践，而且在追求可持续发展领导力的过程中相互比较和竞争。为了了解某些方法的出现和建立，政策流动性研究强调了某些行动者和机构在促进、动员、调整和改变政策模型、实践和知识方面的作用。本文通过强调绿色社区发展的时间维度扩展了政策流动性文献。我们重建和比较弗莱堡、温哥华和卢森堡四个绿色社区发展的轨迹，其关注点是城市以外的“外向”维度和本质上更本地化的“内向”维度。调查结果强调了这些绿色社区的作用和意义随着时间的推移的关系特征，反映了绿色城市化概念化和实践的全球转变。