This book provides an in-depth analysis of the securitisation of climate change in the US, Germany and Mexico and offers a rethinking of securitisation theory. Resting on a Foucauldian governmentality approach, it discusses how different climate security discourses have transformed the political handling of climate change and affected policies, practices and institutions. Going beyond the literature’s predominant focus on the global level, it gives a fine-grained examination of the political and institutional changes in different national contexts. Drawing on the governmentalisation of security, the book develops a new understanding of securitisation that focuses on the role of power. In doing so, it provides new insights into the transformative potential of linking climate change to security but also highlights the political and normative pitfalls of securitisation.  weiterlesen