All geoscience practices have evident repercussions on society. Geoscientists have knowledge and skills to investigate, manage, and intervene on the geosphere, defined as the component of the Earth system constituted by the land surface, the solid Earth, the hydrosphere, the cryosphere, and the atmosphere. This implies ethical obligations. The adoption of ethical principles is essential if geoscientists want to best serve the public good. Ethical responsibility by all geoscientists requires a more active role while interacting with society. Geoethics, which investigate the ethical, social, and cultural implications of geoscience research, practice, and education, represents a new way of thinking about and practicing earth sciences, focusing on issues related to the relationship of the geoscientist with the self, colleagues, and society in the broadest sense. In this paper, we define some of the main values relevant to geoethics.