Eco-territorialism focuses its proposal on the relationship between environmental issues and the territory. For sociology, this is a partly unprecedented challenge. Indeed, environmental sociology has never taken an explicit territorial posture, while territorial sociology has always considered the environment a physical extension that frames human actions. An eco-territorialist sociology, on the other hand, must focus on the logic of ecosystems interacting with society, looking at environmental crises place by place. In the chapter, three sociological perspectives are identified in order to recompose them in an eco-territorial key: Latour and Callon's Actor Network Theory, which reincorporates biophysical worlds and artefacts into agency; Ploeg's rural sociology, which looks at the co-evolution between social and ecological systems; Gough's eco-welfare, which points to a new welfare paradigm capable of sustaining itself outside of growth.