By Hélène Madénian, Sophie L. Van Neste, Zaïnab El Guerrab et René Audet This synthesis presents a history of the struggles that have helped redefine the environmental movement in Quebec over the past fifteen years. First, the struggles against hydrocarbons, then three subsequent moments in the movement: roadmaps and local experiments for transition, conversations to bring « the margins » back to the heart of the climate movement, and contestations from an urban wasteland in Montreal.