In his late works Félix Guattari emphasizes the concept of ecology as tool for analysis and pragmatic proposition for contemporary societies. In The Three Ecologies he outlines three tendencies as mental, social and environmental ecologies. All three ecologies play a crucial role in what Guattari conceives as the nucleus for the transformation of society: the production of subjectivity. This article starts from Guattari's ecological conception of aesthetic practices, which he calls eco-art, to further investigate contemporary forms of activism and their techniques. Through a close reading of the ‘human microphone’ and early footage from Zuccotti Park, the Occupy movement provides the ground for a re-actualization of Guattari's ecological project. Asking how contemporary technologies integrate into the ecologically open production of subjectivity the authors develop an account of activist eco-art as part of a ‘post-media era’. They propose such a post-media era where technologies as ecological techniques for the production of subjectivity transform the political and social context in which we live.