With the advent of posthumanism, many scholars in the humanities have started to explore a transforming conception of the “human,” recognizing the limits of “anthropocentricism” both within and between disciplines. Posthumanism may be defined in various ways but the emphasis in this volume is on the idea of constitutive alterity, not simply in the relationship between human beings and other human beings, but in that between human beings and other species and life forms, and between human beings, nature and technology. As a result, Encounters with the Posthuman and the Environment is located at a crossover between posthumanism and environmental humanities. Between them they move not only between disciplines but also between levels of abstraction, from the most general reflection to the most everyday empirical detail. At the same time, all the chapters are case studies, whether they address particular aspects of philosophical or scientific posthumanism, analyze particular pieces of film, theatre, art, literature, or recall for us instructive episodes from social history. The aim at any rate is to give a feel for the range and depth of the posthumanist problematic within the wider context of environmental humanities.