Solving global environmental problems are emphasized as collective interests of mankind. Not just natural sciences, but social and behavioral sciences have to deal with the topic of environmental changes. Environmental Psychology is also interested in explaining the determinants of pro-environmental behavior. Previous researches revealed that one important personal determinant is social value orientation and the research of Van Vugt, Meertens & Van Lange (1995) supported this notion. Their findings showed that prosocial people have higher propensity for commuting by public transportation in general, while proselfs exhibited greater preference for it just in case of taking advantage of using public transportation. Gärling, Fujii, Gärling & Jakobsson (2003) regarding to different types of social value orientation and awareness of environmental consequences found that proselfs were more influenced by awareness of environmental consequences for themselves. These results can contribute to addressing people with different kind of personal characteristics effectively in connection with pro-environmental behavior. Effective pro-environmental interventions (having behavioral changes in several fields of proenvironmental activities) play significant role in generalizing new habits among people. Thus our current research tries to explore the effectiveness of different forms of communication in modifying environmentally significant behavior. Our current research is focusing on manipulating the level of perceived criticality and types of environmental attitudes and observing how they influence participants’ propensity to behave pro-environmentally. The conception of examining these phenomena in connection with pro-environmental slogans is based on our previous studies. On the one hand we explored that both in social dilemma situations and in survey questions different level of perceived criticality (Chen, Au & Komorita, 1996) affected differently proselfs and prosocials in connection with contributing to the environment. The decision of prosocial people wasn’t affected by perceived criticality, but it influenced the decision of proself people: they increased their contributions in case of high perceived criticality. And on the other hand adopting Environmental Attitude Inventory (Milfont & Duckitt, 2006) we revealed that prosocials and proselfs form different kinds of attitudes in connection with the environment: prosocial people are less motivated by anthropocentric aspects of environmental protection. Therefore based on these results we conducted a study examining the role of the aforementioned factors in pro-environmental slogans. Our results confirmed that perceived criticality has impact on contributing to the protection of the environment. The most effective slogans highlighted that even few people can have significant effect on reducing domestic waste by choosing products with environmental friendly packaging. The interaction of perceived criticality and social value orientation was also shown: proselfs judged slogans with high level of perceived criticality more effective. Finally, emphasizing different aspects of environmental protection in proenvironmental slogans had significant impact on people with ecocentric and anthropocentric attitudes.