Mind the (Mobilization) Gap: Comparing Climate Activism in the United States and European Union.

The barriers to concerted political action on climate change mitigation are steep, especially in multilevel systems where power is diffused and authority contested. Yet action and mobilization - galvanising resources and people to participate actively - is possible, and in certain instances far reaching. This paper seeks to explain how mobilization occurs in complex multilevel systems. It compares two different polities - the United States and the European Union - to tease out the key features of multilevel systems and how they affect climate activism, mobilization and governance. Focusing particularly on climate activists - politically engaged participants - the paper analyses climate mobilization across three stages: awareness-building, alliance-building and network creation. It argues that successful mobilization is highly contingent on activists' ability to exploit - or at least navigate - multilevel institutional barriers. To capture this mobilization dynamic, the paper develops the notion of 'mobilization networks' - stakeholder networks able to transcend levels and institutional inertia and steer polities towards particular climate goals. [ABSTRACT FROM AUTHOR]