Deep ecology: A movement founded by Arne Naess whose leading ideas against environmental resourcism are that “the well-being and flourishing of non-human life have value in themselves independent of their usefulness for human purposes” and “humans have no right to reduce the richness and diversity of life forms except to satisfy vital needs”. Because Naess leaves the concept of vital needs “deliberately vague”, there is no criterial resource to draw the ultimate line of moral decision regarding human interaction with other species and the environment.
Source: ‘What is Good? What is Bad? The Value of All Values across Time, Place and Theories’ by John McMurtry, Philosophy and World Problems, Volume I-III, UNESCO in partnership with Encyclopedia of Life Support Systems: Oxford, 2004-11.