Environmental ethics : duties to and values in the natural world / Rolston, Holmes, 1932-

of life forms / C. Aesthetics: -- Aesthetics and the value of nature / Worldview and the value

the value of life -- Introduction -- Instrumental value and intrinsic value -- Biocentric ethics and

/ Environmental justice and the environmental justice movement / Environmental values in environmental decision

Life's intrinsic value ; science, ethics, and nature / Agar, Nicholas.