Theories of war provoke snarling debate because we are never at peace. Similarly, calls for sustainability nettle us when accompanied by declarations of civilization’s imminent collapse. Certainly there are several lines of investigation indicating that the collective needs of humanity cannot be met in perpetuity and that current demands are already imposing an undue burden on systems that support human life on Earth (my 3quarksdaily colleague, Kevin S Baldwin, writes about it here). Sustainability initiatives, therefore, require us to consider a range of corrective actions. Consistent with what sustainability advocates call the “triple bottom line” of people, planet and profit, changes are needed in the economic, social and ecological realm. Beyond these immediately pragmatic considerations, calls for environmental sustainability also amount to calls for ethical change. The 1987 Brundtland Commission defined sustainable development as development that “meets the needs of the present without compromising the ability of future generations to meet their own needs”. The definition suggests an ethical dimension to sustainability. That is, sustainability requires a reflection on balancing the obligations of the moment against our obligations to humans both unknown and unborn. But why should we be concerned about these humans of the future, anymore than we are about those who went before us? Certainly they are of curiosity value, but are they ethically of concern to us? Sustainability may necessitate a vigorous upheaval in values.
Sustainability ethics, a subspecies of environmental ethics, refers to a set of positions that emerge when the environmental state of things is not simply regarded as irritating, but as immoral, bad, wrong or evil.[1] Environmental ethics in general and sustainability ethics in particular shares a framework in common with the rest of contemporary ethical philosophy, though it also has a suite of unique problems. Although most environmental ethics is human-centered in which environmental damage is largely considered reprobatory because of the consequences for human welfare, there are, more controversially, a set of ethical positions that center on concerns beyond those of our own species. In common though with other normative ethical frameworks, environmental ethics can be approached from a so-called consequentialist, deontological, or virtue ethical perspective.
Briefly, consequentialism, as the name implies, determines the rightness of actions based upon the consequences of actions. Typically the consequentialist strives to maximize the greatest good among a range of outcomes. One can determine the greatest good solely in relation to the agent making the decision – me, for instance, though this egotistical consequentialism can produce unpalatable results from the perspective of others (the non-mes!). Agent-neutral versions are more typical. I might, for example, make ethical decisions that produce the greatest good for all sentient beings, and in this way we can environmentalize consequentialist ethics. Deontological ethics are those that emerge from an examination of principles or rules rather than the value of those things that are affected by actions. Finally, virtue based ethics, deriving from Aristotle (though really they predate him), argues that there are certain human virtues that should be cultivated in order for people to live good lives. One would preserve aspects of the environment, or concern ourselves with the needs of others, in this view of things because to do so corresponds with the exercise of a particular virtue, the practice of which simultaneously brings us pleasure.
From here on I am concerned only with Aristotle’s ethics. Not because other approaches are irrelevant but because Aristotle’s ethical approaches seem to accord with the needs of sustainability in ways that, I think at least, has not been adequately explored.
