In the 1970s nature was again of interest to philosophers in relation to environmental issues. Schelling's philosophy of nature, particularly his intention to construct a program which covers both nature and the intellectual life in a single system and method, and restore nature as a central theme of philosophy, has been reevaluated in the contemporary context. His influence and relation to the German art scene, particularly to Romantic literature and visual art, has been an interest since the late 1960s, from Philipp Otto Runge to Gerhard Richter and Joseph Beuys. This interest has been revived in recent years through the work of the environmental philosopher Arran Gare who has identified a tradition of Schellingian science overcoming the opposition between science and the humanities, and offering the basis for an understanding of ecological science and ecological philosophy.