In this article, Herbert Marcuse’s nature-ethical considerations, which have to date been scarcely received, are used to develop perspectives on how the nature-ethical gap in contemporary Critical Theory could be closed. The central idea is that nature is tobe recognized as a subject in its own right without needing to anthropomorphize it in the process. The advocatory ethics of nature, which is outlined here, differs from current sustainability and environmental ethics primarily in that it maintains the tension between an anthropocentric (...) and an ecocentric approach and does not resolve it in one direction. Marcuse’s so-called “liberation of nature” is understood as a means for the “liberation of humans”, but the latter can only succeed if the former is also carried out. (shrink)