S'engager pour et dans un autre monde : ethnographie d'une initiative alternative luttant pour une transition sociale, politique et environnementale

In my thesis, I investigate Bioma, a self-managed collective involved in alternative practices that are part of a "socio-ecological transition" strategy within the environmental movement. Without engaging directly in contentious actions, Bioma contributes to a redefinition of the environmental movement's demands and perspectives. The aim of my thesis is to analyze precisely the ways alternative practices are constructed and articulated with other collective actions. This allows me to better understand how alternative initiatives can participate in a certain type of social change.   Alternative practices carry a model of social transformation by transition. Thus, it is different from other perspectives of social change such as revolutionary or reformist ones. Transition, as a model of social transformation, is a highly debated topic. Its content, form, objectives and potential radicality are all subjected to controversies. By studying the tensions, constraints and ambivalences that are experienced by Bioma's activists, I explore what real alternative practices may be, in their empirical materiality, but also the ways in which they are involved in a specific model of social change by transition.   In addition to being part of a main social movement, alternative practices usually support, participate and are articulated with other types of social movements. Hence, we shouldn't understand the strategies and models of social change in an exclusive manner. Alternative practices carry a perspective of transition while also participating in both contentious strategies and more institutional ones.  The members of Bioma are experimenting and prefiguring material and relational practices that aim at transforming individuals' subjectivity. These internal practices unfold and are projected in the relationships that Bioma create. Therefore, this group participates to the diversification of possible and actually existing modes of existence and commitment. Through these alternative practices, Bioma builds specific spaces that are part of a spatial struggle. The type of transition for which Bioma fights is "ontological" as it aims at creating a "world" different from the dominant world, even though it is interwoven within it. My thesis shows how this always imperfect and unfinished alternative world is built and experimented. Through this analysis, we see how this world generates a number of tensions and ambivalences that the activists of Bioma live daily.   My analysis draws from a three-year long ethnographic fieldwork during which I was immersed in projects of urban agriculture and permaculture. During this time, I became part of the group and I participated in every collective activities and practices. I also conducted interviews, had in-depth informal conversations and collected and analyzed the documents that were present in my fieldwork. For the whole of my fieldwork, my research posture was one of a militant ethnographer.

Keyphrases: Transition, Social movements, Alternative practices, Social change, Social transformations, Prefiguration, Ontological practices, Urban agriculture, Militant ethnography