The argument put forward in this paper is that ecopsychology would benefit from engaging in more dialogue with developments in the social sciences. The benefits are predominantly in terms of enriching ecopsychological understandings of how we might encourage connectedness to nature and environmental advocacy and discourage environmentally distructive behaviors. More particularly, recent work in the social sciences asserts that existing models of behavior are unlikely to lead to changes on the scale necessary to create something akin to genuinely sustainable societies. The article draws on theory and research emphasizing the irreducible relationship between the psychological and the social, as a basis for better understanding the apparent obstinacy of environmentally destructive behavior and for interventions that offer the hope of change.. any attempt to develop a sustainable society has to understand how the relationships between individuals and their social contexts can be changed. (Uzzell & Räthzel, 2009, p. 340) T here have been numerous recent attempts to comprehensively survey dominant themes in ecopsychology and related psychologies of the environment (e.g., Paidas, 2011;Thompson, 2009). These reviews provide an invaluable guide to how human and nonhuman nature relationships, including those at the core of ecological degradation, are understood across a broad disciplinary base. However, this article looks beyond psychology to developments elsewhere in the social sciences. It is argued that we find there a rapidly developing account of topics relevant to ecopsychologists, not least novel conceptualizations of the role of human behavior and experience in environmental problems and solutions. The paper offers brief outlines of various attempts to theorize social practices as a basic unit of analysis, rather than individual behavior, and related implications for bringing about effective personal and social change in the direction of sustainability. In conclusion, it is argued that ecopsychology can benefit by engaging with contemporary conceptualizations of the way the social is mutually implicated in individual behavior and experience.