Collective and Individual Duties to Protect the Environment

Many environmental harms are produced by the consequences of too many people doing acts which taken together have collective bad consequences, e.g. overuse of an underground aquifer or acid rain ‘killing’ a lake. If such acts are wrong, what should a conscientious moral agent do in such circumstances? Examples of such harms have the general feature that they are produced by individual acts, which taken by themselves may be innocent and morally permissible, but which have disastrous consequences when too many people perform them. Philosophers once thought that the generalisation argument (GA), “If the consequences of everyone's doing acts of kind a are undesirable, then no one ought to do a,” was the appropriate principle to guide a conscientious moral agent in such circumstances. However, there has been considerable literature discussing the shortcomings of this principle. Nevertheless, a proper understanding of the GA suggests that whole groups of people have collective duties to prevent such harms, which duties then provide clues to individual duties to protect the environment. In this paper I consider some major deficiencies of the generalisation argument, the collective duty which follows from the salvageable part of the argument, and the distribution of individual duties a conscientious moral agent has with regard to such environmental harms as a consequence. These duties turn out to be peculiarly political in nature with the result that conscientious moral agents may have a number of political duties to protect the environment heretofore unrealised.