In this paper we contribute to an understanding of how small and medium sized enterprises (SMEs) can be encouraged to participate in the management of environmental common pool resources. We do this by applying ideas from general theories about collective actions and, using evidence from interviews of people with experience dealing with SMEs, show how the ideas are relevant to SMEs. In line with previous research, we present evidence that communication is also necessary to help ensure SME participation. We conclude noting some evidence that suggests that local networks may contribute to successful management of global common pool resources.<br /