Together we bring about climate change. Yet, arguably, no individual car drive or purchase of a package of non-sustainable paper makes any different for the worse. What moral reason then, could there to perform a single ‘sustainable’ act? This is just one instance of the collective action problem; other examples include such issues as factory farming and the exploitation of sweatshop workers. CLUE+ has afforded me with the opportunity to work on the significance of complicity within contexts of collective action, and to investigate a major distinction between different types of collective action cases.