Geoethics as global ethics to face grand challenges for humanity

Abstract Geoethics is not simply professional ethics. Originally, it was developed in the context of geosciences to increase the awareness of geoscientists to their cultural and social role, but over time expanded to define a way in which humans can rethink their relationship with the Earth system in the light of principles and values that can provide a healthy and safe life in respect for geo-ecosystems. The theoretical framework of geoethics has now consolidated, and it has become the proposal on which to base a global ethics for the new millennium. This chapter outlines the scientific and cultural reference framework in which geoethics developed; the theoretical foundations of geoethics and its main characteristics; global anthropogenic issues under a geoethical perspective; ethical and social aspects related to two potential human activities respectively to combat global warming (geoengineering); and to provide for the growing demand for georesources (deep-sea/ocean mining). The authors highlight the importance of sharing values and actions among planetary human communities to manage global changes and threats. One wonders if the SARS-CoV-2 pandemic can suggest or confirm reflections on geoethical thinking. Finally, a charter for a responsible course of human development, articulated in nine principles and actions, is proposed.