ABSTRACTHans Jonas’ philosophy of responsibility is a major contribution to environmental ethics and political theory, but aspects of it have proven controversial. Jonas’ critics, in particular Richard Wolin, have argued that his thought is deeply reactionary. By contrast, Nathan Dinneen has sought to show that Jonas’ apparent eco-authoritarianism is misunderstood. I argue here that Dinneen’s interpretation is too probably too generous, but also that Wolin’s wholesale critique is fundamentally misguided. Rather, the vast majority of Jonas’ thought is of enduring value, (...) including a nascent ecological republicanism which has thus far been overlooked by commentators. (shrink)