This chapter explores the possible influences of Sweden, Denmark and Finland on the Environmental Policy of the EU. We focus specifically on the reputation, expertise and role model behaviour of the Nordic EU members and their possibilities to use these factors as cognitive power resources.The chapter discusses several examples where the Nordic EU member states have successfully promoted their national environmental interests within the EU. We also make use of interviews with environmental representatives at the Swedish, Danish and Finnish Permanent Representations  to the EU in Brussels, officials from other member states, DG Environment of the Commission and the European Environment Agency. The results indicate that the Nordic EU members  have to some extent minimised their quantitative disadvantages, such as small administrations and limited voting powers, by successfully using the cognitive power resources in question within the Environmental Policy of the European Union.