This is the first book to explore the metaphysical foundations of ecological ethics and thus focuses on the fundamental ecological intuition that we are in some sense 'one with' Nature. An excellent book which also shows how traditional disciplines such as physics and metaphysics can throw light on ecological ideas. From a review of the hardback edition - "...this is a book for which serious students of "deep ecology" have been waiting...outstandingly lucid, highly original and tightly argued" - THES.