In an age of ecological decay, Western ontological and epistemological assumptions have to be revisited. This book offers such a revision. It opens with a critical analysis of the paradigm of sustainable development and problematically situates it within the ecocidal trajectory of Western metaphysics. In search of some tools for examining the ecological conundrum, the book develops a pool of new categories of knowledge called transpositions . Though of cross-disciplinary nature, this work must be situated within the tradition of the post-Kantian critique of reason. To develop its own framework of analysis, it relies heavily upon Nietzsche’s oeuvre and that of part of his entourage (including Heidegger, Foucault, Derrida, and Plotnitsky). Major inputs also come from the work of the ecophilosopher of science Patrick Curry and ecofeminism at large. It will appeal to students and established scholars in environmental studies, ecology and philosophy.