21. He offered classes on anarchism and environmental ethics . 22. A Theology of Ecology " ( 1971 ) was the first single-authored book in environmental ethics . 23. Q : Any thoughts on Atlanta's environmental ethic ? 24. These programs began to offer a master's degree with a specialty in environmental ethics / philosophy. 25. It is wrong when it tends otherwise " Callicott espouses a holistic, non-anthropocentric environmental ethic . 26. In considering collectivist environmental ethics , Palmer asks how process thinkers could approach natural collectives, such as ecosystems. 27. Varner begins by critiquing holistic approaches to environmental ethics , using J . Baird Callicott's as his example. 28. Now skiers will have the information they need to act on their environmental ethic , " he said. 29. In environmental ethics in particular, Weston argues that we stand at the very beginning of our exploration. 30. Cobb went on to write the first single-author book in environmental ethics , " Is It Too Late?