The environmental issue imposes itself today on the mutating spaces of governance. It is also revealing of the evolution of the logics of governance and their capacity to create spaces for managing common good, especially at local level. By relying on a foucauldian discourse analysis framework and the writings of Boltanski and Thévenot on justification, we propose a methodology for grasping the dynamics of evolution of local governance in Lebanon when confronted with the challenge of dealing with environmental issues. Based on our analysis, we could say that the environmental transition at the local level is more a dynamic process that complexifies the landscapes of local governance and fragments the spaces of common good than a linear process enlarging these spaces.