The purpose of this advanced course is to inform, sensitize, and encourage mobilization around these SDGs. First of all, it proposes a detailed study of the state of humanity and the planet in 2019, a situation that allows us to understand the idea and reaffirm the need for SDGs. Beyond a presentation of these objectives, their targets and their monitoring indicators, the course examines, based on an analysis and examples, one of the major difficulties encountered in making these SDGs operational: managing the contradictions between some of their targets. Finally, a study of what is possible to do concretely is proposed. The role of public, economic, financial, media and associative stakeholders is thus examined, as well as the equally important role of citizens and youth.