November 21, 2023 Schoon, M., S. Van der Leeuw (2015). The shift toward social-ecological systems perspectives: Insights into the human-nature relationship. Natures Sciences Sociétés 23 (2), 166-174. Home » Schoon, M., S. Van der Leeuw (2015). The shift toward social-ecological systems perspectives: Insights into the human-nature relationship. Natures Sciences Sociétés 23 (2), 166-174.