Frankfurt School Critical Theory is a theory of crises with a long history of critical interventions. Yet its voice is barely audible in the context of the climate crisis. Currently, therefore, the dynamics of the crisis of social relations to nature are increasingly being discussed in theoretical languages that exhibit only a meager social-theoretical and ideology-critical profile. The project assumes that conceptual problems of contemporary Critical Theory contribute to its disregard and that the theoretical elucidation of its own sources represents a starting point for its revision. The hitherto unsystematized reception of Schelling’s philosophy in Frankfurt School Critical Theory serves as a starting point for this undertaking.