The Anthropocene concept, the new geological era proposed by P. Crutzen and E. Stoermer (2000), seems to be meant to play an increasingly prominent role in the international scientific debate. In this context, the first part of the article illustrates the foundations and objectives of geoethics, and the conceivable connections with the Anthropocene geological era. In fact, geoethics, that is the analysis of how humans think and act in order to suggest appropriate behaviors where human activities interact with the geosphere, is dialectically related to the concept of Anthropocene. In the second part of the article the new processes of the Anthropocene era are illustrated through geoethics and semiotics, using as a "translator mechanism" one of the key notions of Peircean semiotics: the semiotic triangle, for the purpose of reinterpreting and reconsidering the relationship between man and nature.
Keywords: Anthropocene, geoethics, noosphere, Peirce, semiotics