This study integrates social value orientation (Messick & McClintock, 1968) and the consideration of future consequences (CFC; Strathman, Gleicher, Boninger, & Edwards, 1994) within the extended norm activation model of proenvironmental behaviour (Stern, Dietz, & Kalof, 1993). A survey of college students (N=161) revealed some preliminary support for the proposed model, using past and intended involvement in proenvironmental political behaviour as the primary outcome variables. Relative to proselfs, prosocials expressed stronger proenvironmental intentions and a stronger belief in the social consequences of environmental conditions. Relative to low CFCs, high CFCs expressed stronger proenvironmental intentions, greater involvement in proenvironmental behaviour, and a stronger belief in the personal, social and biospheric consequences of environmental conditions. Perceived consequences mediated the relationship between CFC and proenvironmental intentions and behaviour, and high CFCs evidence a stronger positive relationship between perceived social consequences and proenvironmental intentions.