In Defense of the Land Ethic: Essays in Environmental Philosophy brings into a single volume J. Baird Callicott’s decade-long effort to articulate, defend, and extend the seminal environmental philosophy of Aldo Leopold. A leading voice in this new field, Callicott sounds the depths of the proverbial iceberg, the tip of which is “The Land Ethic.” “The Land Ethic,” Callicott argues, is traceable to the moral psychology of David Hume and Charles Darwin’s classical account of the origin and evolution of Hume’s (...) moral sentiments. Leopold adds an ecological vision of organic nature to these foundations. How can an evolutionary and ecological environmental ethic bridge the gap between is and ought? How may wholes—species, ecosystems, and the biosphere itself—be the direct objects of moral concern? How may the intrinsic value of nonhuman natural entities and nature as a whole be justified? In addition to confronting and resolving these distinctly philosophical queries, Callicott engages in lively debate with proponents of animal liberation and rights—finally to achieve an integrated theory of animal welfare and environmental ethics. He critically discusses the land ethic that is alleged to have prevailed among traditional American Indian peoples and points toward a new and equally revolutionary environmental aesthetic. (shrink)

The ethical foundations of the “animal liberation” movement are compared with those of Aldo Leopold’s “land ethic,” which is taken as the paradigm for environmental ethics in general. Notwithstanding certain superficial similarities, more profound practical and theoretical differences are exposed. While only sentient animals are moraIly considerable according to the humane ethic, the land ethic includes within its purview plants as weIl as animals and even soils and waters. Nor does the land ethic prohibit the hunting, killing, and eating ofcertain (...) animal species, in sharp contrast to the humane ethic. The humane ethic rests upon Benthamic foundations: pain is taken to be the ultimate evil and it is reductive or atomistic in its moral focus. The land ethic, on the other hand, is holistic in the sense that theintegrity, stability, and beauty of the biotic community is its summum bonum. A classical antecedent of some of the formal characteristics of the land ethic is found in Plato’s moral philosophy. Special consideration is given to the differing moral status of domestic and wild animals in the humane and land ethics and to the question of moral vegetarianism. (shrink)

Bringing together ecology, evolutionary moral psychology, and environmental ethics, J. Baird Callicott counters the narrative of blame and despair that prevails in contemporary discussions of climate ethics and offers a fresh, more optimistic approach.

A leading theorist addresses a wide spectrum of topics central to the field of environmental philosophy.

The ethical foundations of the “animal liberation” movement are compared with those of Aldo Leopold’s “land ethic,” which is taken as the paradigm for environmental ethics in general. Notwithstanding certain superficial similarities, more profound practical and theoretical differences are exposed. While only sentient animals are moraIly considerable according to the humane ethic, the land ethic includes within its purview plants as weIl as animals and even soils and waters. Nor does the land ethic prohibit the hunting, killing, and eating ofcertain (...) animal species, in sharp contrast to the humane ethic. The humane ethic rests upon Benthamic foundations: pain is taken to be the ultimate evil and it is reductive or atomistic in its moral focus. The land ethic, on the other hand, is holistic in the sense that theintegrity, stability, and beauty of the biotic community is its summum bonum. A classical antecedent of some of the formal characteristics of the land ethic is found in Plato’s moral philosophy. Special consideration is given to the differing moral status of domestic and wild animals in the humane and land ethics and to the question of moral vegetarianism. (shrink)

The ethical foundations of the “animal liberation” movement are compared with those of Aldo Leopold’s “land ethic,” which is taken as the paradigm for environmental ethics in general. Notwithstanding certain superficial similarities, more profound practical and theoretical differences are exposed. While only sentient animals are moraIly considerable according to the humane ethic, the land ethic includes within its purview plants as weIl as animals and even soils and waters. Nor does the land ethic prohibit the hunting, killing, and eating ofcertain (...) animal species, in sharp contrast to the humane ethic. The humane ethic rests upon Benthamic foundations: pain is taken to be the ultimate evil and it is reductive or atomistic in its moral focus. The land ethic, on the other hand, is holistic in the sense that theintegrity, stability, and beauty of the biotic community is its summum bonum. A classical antecedent of some of the formal characteristics of the land ethic is found in Plato’s moral philosophy. Special consideration is given to the differing moral status of domestic and wild animals in the humane and land ethics and to the question of moral vegetarianism. (shrink)

The Great New Wilderness Debate is an expansive, wide-ranging collection that addresses the pivotal environmental issues of the modern era. This eclectic volume on the varied constructions of “wilderness” reveals the recent controversies that surround those conceptions, and the gulf between those who argue for wilderness "preservation" and those who argue for "wise use." J. Baird Callicott and Michael P. Nelson have selected thirty-nine essays that provide historical context, range broadly across the issues, and set forth the positions of the (...) debate. Beginning with such well-known authors as Ralph Waldo Emerson, Henry David Thoreau, John Muir, and Aldo Leopold, the collection moves forward to the contemporary debate and presents seminal works by a number of the most distinguished scholars in environmental history and environmental philosophy. The Great New Wilderness Debate also includes essays by conservation biologists, cultural geographers, environmental activists, and contemporary writers on the environment. (shrink)

Despite Christopher Stone’s recent argument on behalf of moral pluralism, the principal architects of environmental ethics remain committed to moral monism. Moral pluralism fails to specify what to do when two or more of its theories indicate inconsistent practical imperatives. More deeply, ethical theories are embedded in moral philosophies and moral pluralism requires us to shift between mutually inconsistent metaphysics of morals, most of which are no Ionger tenable in light of postmodern science. A univocal moral philosophy-traceable to David Hume’s (...) and Adam Smith’s theory of moral sentiments, grounded in evolutionary biology by Charles Darwin, and latterly extended to the environment by Aldo Leopold-provides a unified, scientifically supported world view and portrait of human nature in whichmultiple, lexically ordered ethics are generated by multiple human, “mixed,” and “biotic” community memberships. (shrink)

The contributors, not identified except by name, are mostly westerners. No bibliography. Paperback edition ($12.95) not seen. Annotation copyrighted by Book News, Inc., Portland, OR.

The central and most recalcitrant problem for environmental ethics is the problem of constructing an adequate theory of intrinsic value for nonhuman natural entities and for nature as a whole. In part one, I retrospectively survey the problem, review certain classical approaches to it, and recommend one as an adequate, albeit only partial, solution. In part two, I show that the classical theory of inherent value for nonhuman entities and nature as a whole outlined in part one is inconsistent with (...) a contemporary scientific world view because it assumes the validity of the classical Cartesian partition between subject and object which has been overturned by quantum theory. Based upon the minimalistic Copenhagen Interpretation of quantum theory, I then develop a theory of inherent value which does not repose upon the obsolete subject/object and ancillary fact/value dichotomies. In part three, I suggest that a more speculative metaphysical interpretation of quantum theory--one involving the notion ofreal internal relations anda holistic picture of nature-permits a principle of “axiological complementary,” a theory of “intrinsic”-as opposed to “inherent”-value in nature as a simple extension of ego. (shrink)

The environmental crisis is global in scope, yet contemporary environmental ethics is centered predominantly in Western philosophy and religion. _Earth's Insights_ widens the scope of environmental ethics to include the ecological teachings embedded in non-Western worldviews. J. Baird Callicott ranges broadly, exploring the sacred texts of Islam, Hinduism, Jainism, Taoism, Confucianism, and Zen Buddhism, as well as the oral traditions of Polynesia, North and South America, and Australia. He also documents the attempts of various peoples to put their environmental ethics (...) into practice. Finally, he wrestles with a question of vital importance to all people sharing the fate of this small planet: How can the world's many and diverse environmental philosophies be brought together in a complementary and consistent whole? (shrink)

Although ecology is neither a universal nor foundational science, it has metaphysical implications because it profoundly alters traditional Western concepts of terrestrial nature and human being. I briefly sketch the received metaphysical foundations of the modem world view, set out a historical outline of an emerging ecological world view, and identify its principal metaphysical implications. Among these the most salient are a field ontology, the ontological subordination of matter to energy, internal relations, and systemic (as opposed to oceanic) holism. I (...) treat moral psychology as a special case of the metaphysical implications of ecology. Ecology undermines the concept of a separable ego or social atom and thus renders obsolete any ethics which involves the concepts of “self” and “other” as primitive terms. (shrink)

Recent deconstructive developments in ecology (doubts about the existence of unified communities and ecosystems, the diversity-stability hypothesis, and a natural homeostasis or “balance of nature”; and an emphasis on “chaos,” “perturbation,” and directionless change in living nature) and the advent of sociobiology (selfish genes) may seem to undermine the scientific foundations of environmental ethics, especially the Leopold land ethic. A reassessment of the Leopold land ethic in light of these developments (and vice versa) indicates that the land ethic is still (...) a viable environmental ethic, if judiciously updated and revised. (shrink)

Central to Holmes Rolston’s Environmental Ethics is the theoretical quest of most enviromnental philosophers for a defensible concept of intrinsic value for nonhuman natural entities and nature as a whole. Rolston’s theory is similar to Paul Taylor’s in rooting intrinsic value in conation, but dissimilar in assigning value bonuses to consciousness and self-consciousness and value dividends to organic wholes andelemental nature. I argue that such a theory of intrinsic value flies in the face of the subject/object and fact/value dichotomies of (...) the metaphysical foundations of modem science—a problem Rolston never directly confronts. The modern scientific world view is obsolete. A post-modem scientific world view provides for a range of potential values in nature actualizable upon interaction with consciousness. The bestthat a modem scientific world view can provide are subject-generated—though not necessarily subject-centered—values in nature. (shrink)

A plethora of normative conservation concepts have recently emerged, most of which are ill-defined: biological diversity, biological integrity, ecological restoration, ecological services, ecological rehabilitation, ecological sustainability, sustainable development, ecosystem health, ecosystem management, adaptive management, and keystone species are salient among them. These normative concepts can be organized and interpreted by reference to two new schools of conservation philosophy, compositionalism and functionalism. The former comprehends nature primarily by means of evolutionary ecology and considers Homo sapiens separate from nature. The latter comprehends (...) nature primarily by means of ecosystem ecology and considers Homo sapiens a part of nature. Biological diversity, biological integrity, and ecological restoration belong primarily in the compositionalist glossary; the rest belong primarily in the functionalist glossary. The former set are more appropriate norms for reserves, the latter for areas that are humanly inhabited and exploited. In contrast to the older schools of conservation philosophy, preservationism and resourcism, compositionalism and functionalism are complementary, not competitive and mutually exclusive. As the historically divergent ecological sciences—evolutionary ecology and ecosystem ecology—are increasingly synthesized, a more unified philosophy of conservation can be envisioned. (shrink)

Central to Holmes Rolston’s Environmental Ethics is the theoretical quest of most enviromnental philosophers for a defensible concept of intrinsic value for nonhuman natural entities and nature as a whole. Rolston’s theory is similar to Paul Taylor’s in rooting intrinsic value in conation, but dissimilar in assigning value bonuses to consciousness and self-consciousness and value dividends to organic wholes andelemental nature. I argue that such a theory of intrinsic value flies in the face of the subject/object and fact/value dichotomies of (...) the metaphysical foundations of modem science—a problem Rolston never directly confronts. The modern scientific world view is obsolete. A post-modem scientific world view provides for a range of potential values in nature actualizable upon interaction with consciousness. The bestthat a modem scientific world view can provide are subject-generated—though not necessarily subject-centered—values in nature. (shrink)

Recent deconstructive developments in ecology (doubts about the existence of unified communities and ecosystems, the diversity-stability hypothesis, and a natural homeostasis or “balance of nature”; and an emphasis on “chaos,” “perturbation,” and directionless change in living nature) and the advent of sociobiology (selfish genes) may seem to undermine the scientific foundations of environmental ethics, especially the Leopold land ethic. A reassessment of the Leopold land ethic in light of these developments (and vice versa) indicates that the land ethic is still (...) a viable environmental ethic, if judiciously updated and revised. (shrink)

Aldo Leopold was a pragmatist in the vernacular sense of the word. Bryan G. Norton claims that Leopold was also heavily influenced by American Pragmatism, a formal school of philosophy. As evidence, Norton offers Leopold's misquotation of a definition of right (as truth) by political economist, A.T. Hadley, who was an admirer of the philosophy of William James. A search of Leopold's digitised literary remains reveals no other evidence that Leopold was directly influenced by any actual American Pragmatist or by (...) Pragmatism (although he may have been indirectly influenced by Pragmatism early in his career). A 1923 reference, by Leopold, to Hadley and Hadley's putative definition of truth, cited by Norton, is dripping with irony. Leopold, as he matured philosophically, regarded a profound cultural shift from anthropocentric dominionism and consumerism to an evolutionary-ecological worldview and an associated non-anthropocentric 'land ethic' to be necessary for successful and sustainable conservation. Hadley espoused a brutal form of Social Darwinism and his philosophy, as expressed in the book of Hadley's that Norton cites, is politically reactionary, militaristic and unconcerned with conservation. Leopold's mature philosophy and Hadley's – far from consonant, as Norton claims – are diametrically opposed. (shrink)

The environmental crisis is global in scope, yet contemporary environmental ethics is centered predominantly in Western philosophy and religion. _Earth's Insights_ widens the scope of environmental ethics to include the ecological teachings embedded in non-Western worldviews. J. Baird Callicott ranges broadly, exploring the sacred texts of Islam, Hinduism, Jainism, Taoism, Confucianism, and Zen Buddhism, as well as the oral traditions of Polynesia, North and South America, and Australia. He also documents the attempts of various peoples to put their environmental ethics (...) into practice. Finally, he wrestles with a question of vital importance to all people sharing the fate of this small planet: How can the world's many and diverse environmental philosophies be brought together in a complementary and consistent whole? (shrink)

A generalized traditional Western world view is compared with a generalized traditional American Indian world view in respect to the practical relations implied by either to nature. The Western tradition pictures nature as material, mechanical, and devoid of spirit, while the American Indian tradition pictures nature throughout as an extended family or society of living, ensouled beings. The former picture invites unrestrained exploitation of nonhuman nature, while the latter provides the foundations for ethical restraint in relation to nonhuman nature. This (...) conclusion is defended against disclaimers by Calvin Martin and Tom Regan. (shrink)

A generalized traditional Western world view is compared with a generalized traditional American Indian world view in respect to the practical relations implied by either to nature. The Western tradition pictures nature as material, mechanical, and devoid of spirit (reserving that exclusively for humans), while the American Indian tradition pictures nature throughout as an extended family or society of living, ensouled beings. The former picture invites unrestrained exploitation of nonhuman nature, while the latter provides the foundations for ethical restraint in (...) relation to nonhuman nature. This conclusion is defended against disclaimers by Calvin Martin and Tom Regan. (shrink)

The concept of ecosystem health is problematic. Do ecosystems as such exist? Is health an objective condition of organisms or is it socially constructed? Can 'health' be unequivocally predicated of ecosystems? Is ecosystem health both objective and valuative? Are ecosystem health and biological integrity identical? How do these concepts interface with the concept of biodiversity? Ecosystems exist, although they are turning out to be nested sets of linked process-functions with temporal boundaries, not tangible superorganisms with spatial boundaries. Ecosystem health – (...) or normal occurrence of ecological processes and functions – is an objective condition of ecosystems, although the concept of ecosystem health allows some room for personal and social determination or construction. Ecosystem health is prudentially, aesthetically, and intrinsically valuable, although the value of ecosystem health is subjectively conferred. Biodiversity and biological integrity are different from, but not unrelated to, ecosystem health. Together these three normative concepts represent complementary conservation goals. (shrink)

Agriculture and medicine palpably manifest a culture's world view. Correspondingly, changes in agriculture and medicine may be barometers of change in a culture's overall outlook. Conventional industrial agriculture and modern surgical/chemical medicine clearly express the Newtonian mechanical model of nature. The modern classical world view represents nature to be an externally related, atomic, reductive, material, and mechanical aggregate. Modern medicine, correspondingly, treats the body as an elaborate mechanism and industrial agriculture regards soil as a substratum for monocultures assembled from fossil (...) fuels, synthetic fertilizers, and chemical pesticides. The nascent agroecology and wellness movements each express and reflect the new paradigm variously emerging from ecology and quantum physics. Ecology and the new physics, each in its own way, represent nature to be an internally related, systemic, integrated, organic whole. Agroecology translates this abstract new vision into a concrete agricultural vocabulary: The farmstead is regarded as an artificial ecosystem with a multiplicity of diverse plant and animal constituents interacting with one another and with environing natural ecosystems in complex and mutually supporting ways. (shrink)

Environmental ethics in its modem classical expression by Aldo Leopold appears to fall afoul of Hume’s prohibition against deriving ought-statements from is-statements since it is presented as a logical consequence of the science of ecology. Hume’s is/ought dichotomy is reviewed in its historical theoretical context. A general formulation bridging is and ought, in Hume’s terms, meeting his own criteria for sound practical argument, is found. It is then shown that Aldo Leopold’s land ethic is expressible as a special case of (...) this general formulation. Hence Leopold’s land ethic, despite its direct passage from descriptive scientific premises to prescriptive normative conclusions, is not in violation of any logical strictures which Hume would impose upon axiological reasoning. (shrink)

Environmental ethics in its modem classical expression by Aldo Leopold appears to fall afoul of Hume’s prohibition against deriving ought-statements from is-statements since it is presented as a logical consequence of the science of ecology. Hume’s is/ought dichotomy is reviewed in its historical theoretical context. A general formulation bridging is and ought, in Hume’s terms, meeting his own criteria for sound practical argument, is found. It is then shown that Aldo Leopold’s land ethic is expressible as a special case of (...) this general formulation. Hence Leopold’s land ethic, despite its direct passage from descriptive scientific premises to prescriptive normative conclusions, is not in violation of any logical strictures which Hume would impose upon axiological reasoning. (shrink)

J. Baud Callicott and Michael P. Nelson offer an engaging study of environmental ethics with particular emphasis on an ethics supported by the Ojibwa cultural worldview. Connecting environmental theory with diverse stories from Ojibwa Indians, Callicott and Nelson reveal the meaning and power of cultural worldviews as they inform ethical principles and practices, as they show that competing worldviews demonstrate the many ways "of cognitively organizing human experience." The authors begin with a concise treatment of environmental ethics, cultural worldviews, and (...) the problem of cultural relativism, and integrate and evaluate rarely seen narratives of Ojibwa Indians on their relationship to the environment. American Indian Environmental Ethics is the seventh book in the series, Basic Ethics in Action, edited by Michael Boylan. This series is a major new undertaking by Prentice Hall covering several areas in applied ethics, including business ethics, environmental ethics, medical ethics, and social and political ethics. (shrink)

Mountains were once no less feared and loathed than wetlands. Mountains, however, were aesthetically rehabilitated (in part by modern landscape painting), but wetlands remain aesthetically reviled. The three giants of American environmental philosophy--Thoreau, Muir, and Leopold--all expressed aesthetic appreciation of wetlands. For Thoreau and Muir--both of whom were a bit misanthropic and contrarian--the beauty of wetlands was largely a matter of their floral interest and wildness (freedom from human inhabitation and economic exploitation). Leopold's aesthetic appreciation of wetlands was better informed (...) by evolutionary natural history and ecology. For example, cranes--wetland denizens--are more ancient than other large American avifauna and this evolutionary information and perspective enhances our aesthetic experience of them; and the ecological relationships between wetland species--such as sphagnum moss, tamaracks, and pitcher plants--informs our aesthetic experience of the wetlands biotic community. The Leopold land aesthetic involves all sensory modalities, emphasizes cognition as well as sensation (in this regard it may fruitfully be compared to the philosophy of Kant), and is more akin to an aesthetic of muisic than to an aesthetic of painting. (shrink)

The conceptual foundations of Aldo Leopold's seminal land ethic are traceable through Darwin to the sentiment?based ethics of Hume. According to Hume, the moral sentiments are universal; and, according to Darwin, they were naturally selected in the intensely social matrix of human evolution. Hence they may provide a ?consensus of feeling?, functionally equivalent to the normative force of reason overriding inclination. But then ethics, allege K. S. Shrader?Frechette and W. Fox, is reduced to a description of human nature, and the (...) question remains open whether one really ought or ought not value, approve, or do this or that. The moral sentiments, however, are informed by culture. Specific ethical injunctions, even so, are not culturally relative, because cultural beliefs are amenable to cognitive criticism. New experience and new discoveries of science may bring to light hitherto unrecognized ?proper objects? of our moral sentiments. (shrink)

An international group of environmental philosophers and educators propose ways universities can produce and promote ecological literacy and environmental ethics.

In Democracy and the Claims of Nature, the leading thinkers in the fields of environmental, political, and social theory come together to discuss the tensions and sympathies of democratic ideals and environmental values. The prominent contributors reflect upon where we stand in our understanding of the relationship between democracy and the claims of nature. Democracy and the Claims of Nature bridges the gap between the often competing ideals of the two fields, leading to a greater understanding of each for the (...) other. (shrink)

Here I argue that the hyper-individualistic and rationalistic ethical paradigms – originating in the late eighteenth century and dominating moral philosophy, in various permutations, ever since – cannot capture the moral concerns evoked by the prospect of global climate change. Those paradigms are undone by the temporal and spatial scales of climate change. To press my argument, I deploy two famous philosophical tropes – John Rawls's notion of the original position and Derek Parfit's paradox – and another that promises to (...) become famous: Dale Jamieson's six little ditties about Jack and Jill. I then go on to argue that the spatial and especially the temporal scales of global climate change demand a shift in moral philosophy from a hyper-individualistic ontology to a thoroughly holistic ontology. It also demands a shift from a reason-based to a sentiment-based moral psychology. Holism in environmental ethics is usually coupled with non-anthropocentrism in theories constructed to provide moral considerability for transorganismic entities – such as species, biotic communities, and ecosystems. The spatial and temporal scales of climate, however, render non-anthropocentric environmental ethics otiose, as I more fully explain. Thus the environmental ethic here proposed to meet the moral challenge of global climate change is holistic but anthropocentric. I start with Jamieson's six little ditties about Jack and Jill. (shrink)

This chapter contains sections titled: The Darwinian roots of the land ethic The evolutionary origin of ethics The development of ethics correlative to the development of society The land ethic as the next step in the Darwinian society‐ethics pas de deux The holism of the land ethic and its antecedents The holism of the land ethic and the problem of eco‐fascism Prioritizing the duties generated by membership in multiple communities The priority (second‐order) principles applied to the old‐growth forest quandary The (...) land ethic in the time of a shifting science of ecology. (shrink)

Para los puritanos del siglo XVII, la costa este de América del Norte, las áreas silvestres o wilderness eran abominables y lacerantes. En el siglo XVIII, el predicador y teólogo puritano Jonathan Edwards inició el proceso de transformación de las áreas silvestres estadounidenses en un recurso estético y espiritual, un proceso que completó en el siglo XIX Ralph Waldo Emerson. Henry David Thoreau fue el primer estadounidense en recomendar la preservación de las áreas silvestres (wilderness) para propósitos de recreación trascendental (...) (soledad y una experiencia estética y espiritual). En el siglo XX, Theodore Roosevelt y Aldo Leopold abogaron por la preservación de las áreas silvestres para un tipo diferente de recreación (la caza, la pesca y la excursión) con el propósito de preservar el singular carácter estadounidense y sus instituciones. Entre estas tres concepciones históricas de la preservación de las áreas silvestres, la tercera constituye el mejor modelo para los ecosistemas de frontera del Cono Austral de América. (shrink)

In dealing with concern for fellow human beings, sentient animals, and the enviroment, Christopher D. Stone suggests that a single agent adopt a different ethical theory---e.g., Kant’s, Bentham’s, Leopold’s---for each domain. Ethical theories, however, and their attendant rules and principles are embedded in moral philosophies. Employing Kant’s categorical imperative in this case, Bentham’s hedonic caIculus in that, and Leopold’s land ethic in another, a single agent would therefore have either simultaneously or cyclically to endorse contradictory moral philosophies. Instead, I suggest (...) that different and sometimes conflicting duties and obligations are generated by an agent’s membership in multiple moral communities. Peter Wenz, Gary Varner, Andrew Brennan, Anthony Weston, and Eugene Hargrove, among others, variously misunderstand either what is at issue in the monism versus pluralism debate in environmental ethics or my suggested communitarian altemative to the sort of pluralism that Stone recommends. (shrink)

Earth’s Insights is about more than indigenous North American environmental attitudes and values. The conclusions of Hester, McPherson, Booth, and Cheney about universal indigenous environmental attitudes and values, although pronounced with papal infallibility, are based on no evidence. The unstated authority of their pronouncements seems to be the indigenous identity of two of the authors. Two other self-identified indigenous authors, V. F. Cordova and Sandy Marie Anglás Grande, argue explicitly that indigenous identity is sufficient authority for declaring what pre-Columbian indigenous (...) environmental attitudes and values were. Exclusive knowledge claims based on essentialist racial-cultural identity, though politically motivated, are politically risky. They may inadvertently legitimate more noxious and dangerous racial-cultural identity politics and exclusion of those who identify themselves (or are identified by others) in oppositional racialcultural terms from full and equal participation in the political and economic arenas of the prevailing culture. Biologically, racial differences are entirely superficial; Homo sapiens is a single, homogeneous species. Contrary to Hester et al., ethnic conflict was common among pre-Columbian indigenous North American peoples. Other indigenous authors, among them McPherson, have found my comparison of pre-Columbian indigenous North American attitudes and values with the Aldo Leopold land ethic to be illuminating. I wish I had not said that pre-Columbian indigenous North American attitudes and values are “validated” by ecology, but rather that they and ecology are “mutually validating.”. (shrink)