Chan, Kai M A; Balvanera, Patricia; Benessaiah, Karina; Chapman, Mollie; Díaz, Sandra; Gómez-Baggethun, Erik; Gould, Rachelle; Hannahs, Neil; Jax, Kurt; Klain, Sarah; Luck, Gary W; Martín-López, Berta; Muraca, Barbara; Norton, Bryan; Ott, Konrad; Pascual, Unai; Satterfield, Terre; Tadaki, Marc; Taggart, Jonathan; Turner, Nancy (2016). Opinion: Why protect nature? Rethinking values and the environment. Proceedings of the National Academy of Sciences of the United States of America, 113(6):1462-1465.