Environmental Ethics

• Brennan, Andrew. “What is Environmental Philosophy?” in Encyclopedia of Environmental Ethics and Philosophy, vol. 1, edited by J. Baird Callicott and Robert Frodeman, Detroit, MI: Macmillan Reference USA, 2009. 372-381.
• McShane, Katie. “Environmental Ethics: An Overview.” Philosophy Compass 4, no. 3 (2009): 407-420.
• Rolston, Holmes III. “Environmental Ethics” in The Blackwell Companion to Philosophy, by Nicholas Bunnin and E. P. Tsui-James (eds.). Oxford, UK: Blackwell Publishing, 2003

Animal Ethics

• Regan, Tom. “The Case for Animals Rights,” In In Defense of Animals, ed. Peter Singer, pp. 13-26. New York: Blackwell, 1985.

Deep Ecology

Environmental Aesthetics

• Brady, Emily. “Environmental Aesthetics.” in Encyclopedia of Environmental Ethics and Philosophy, vol. 1, edited by J. Baird Callicott and Robert Frodeman, Detroit: Macmillan Reference USA, 2009. 313-321.

Ecofeminism

Environmental Justice