This paper is an exploration of evolving ideas, urgencies, and actions that we have experimented with in our teaching of an environmental sustainability subject with pre-service teachers at an Australian university. It is a work in progress. Through this shared educator-student teaching and learning process we feel the tensions of contradictory forces that disrupt the flow of prior teaching as we all become unsettled by hope and reality, grief, and loss, all mixed in with a sense of urgency and tempered by a set of often unimaginative contemporary pedagogical practices. These tensions often resort educators like us, to perpetuate well-worn and critiqued tropes such as how to 'care for the planet' through 'greening' practices in schools such as recycling and energy conservation. Always inadequate and limited we are experimenting in our pedagogical repertoire with new ways to teach as we could no longer keep up the charade of agitating for change in the same way. In this paper we explore some of the opening and closures that effect environmental sustainability teaching. We consider how through a reimagining of sustainability education with new pedagogical openings of 'making kin' we first attend to these emotional tensions as a means of waking up to who we are in the Anthropocene and then find ways to identify relational ethico-onto-epistemologies in our teaching. By disrupting humanist paradigms and embracing critical posthumanist sensitivities the educators and students nuzzle into new ways of knowing and being in the world.