Human behavior has been widely considered as playing a central role in the deterioration of our living environment (Gardner and Stern, 1996). If destructive behavior is to change it is necessary that what influences such behavior be understood. A considerable amount of research has attempted to address this question by looking for relationships between environmental behavior and variables such as attitudes towards and knowledge of environmental issues. These variables have been shown not to be good predictors of environmental behavior. The best predictor of environmental behavior has been found to be environmental values (for example, Schwartz, 1992; Karp, 1996; Schultz & Zelezney, 1998).