Presenting a wide range of views and strategies, The Green Halo analyzes the problematic relations between humans and the rest of the natural world. The author looks at the views of thinkers including John Muir, Aldo Leopold, and Al Gore, and suggests alternative ways to view nature, assign it value, and respond to ecological crises. ...about half of these essays are new...quality remains high and the style sharp, still quotable. -- International Studies in Philosophy Here is perhaps the most remarkable of the several introductions to environmental ethics available in a growing literature-remarkable both for the unusual career of its author and for the multi-dimensional nature of the work. [Kohak] is able to combine thoery and practice most efffectively. On every page he joins multiple tensions in the field, often finding complementary insights: the contemporary and the historical, facts and values, the is and the ought, reason and emotion, the real and the ideal, ethics and metaphysics, the subjective and the objective. . . I am privileged to endorse this work. -- Holmes Rolston III, author of Philosophy Gone Wild The Green Halo can be read at many levels. It is enjoyable reading and can serve as an introduction for those who know little or nothing about enviromental philosophy. At the same time, it makes a new contribution to the field, both at the movement and mainstream levels. Because Kohk is equally knowledgeable about environmental ethics in North America and his native country, the Czech Republic, he provides insight and perspectives not available from any other philosopher. The book is likly to become a classic in the field. -- Eugene C. Hargrove, author of Foundations of Environmental Ethics