Foster, J.B. (2000). Marx's ecology: Materialism and nature. New York: Monthly Review Press.
2.
Fry, D.P. (2006). The human potential for peace. Oxford, UK: Oxford University Press.
3.
Fuentes, A. (2004). It's not all sex and violence: Integrated anthropology and the role of cooperation and social complexity in human evolution. American Anthropologist, 106, 710-718.
4.
Hamilton, C. (2007). Building on Kyoto. New Left Review , 45, 91-103.
5.
International Union for the Conservation of Nature and Natural Resources. (2006). 2006 IUCN red list of threatened species. Available from www.iucnredlist.org
6.
Longo, S.B., & Malone, N.M. (2006). Meat, medicine, and materialism: A dialectical analysis of human relationships to nonhuman animals and the environment. Human Ecology Review, 13(2), 111-121.
