Members ’ Activism in Environmental Movements

This article investigates green party members ’ activism in the environmental movement and tests how a number of predictors, theoretically suggested in the past yet rarely empirically tested, can account for it. The authors ’ analy-sis is based on an extensive data set of members of 15 green parties in 12 European countries (N = 6,639). This article finds that members ’ activism can be accounted for largely by network and identity variables, as suggested by social movements ’ scholars, whereas “new social movements ” theories did not adequately explain environmental activism. Thus, network or identity variables, such as past activism, membership in environmental organizations, and activism in other social movements, are significant in the multivariate model. A number of alternative models are significant alone but not when network or identity variables are added to the model: postmaterialism, a “new environmental paradigm ” worldview, and political attitudes. Although age, rational choice considerations, and new middle-class placement remai