Climate change is one of the greatest challenges of our time. The complexity of the issue, along with the breakdown of international negotiations of the UN Climate Change Conference in 2009, raise demands for new forms of mobilization and strategies. In this article, we discuss how strategies of environmental movements to combat climate change can be understood in relation to the ways in which the movement has been institutionalized in a national and global context. We base our analysis on environmental movement actors’ own reflections on their practices and organizational forms as well as previous research describing the history of environmentalism in Denmark. We conclude by discussing the implications in terms of the emotional strategies of the movement and whether climate justice as an issue has affected the strategies of the movement.