Abstract
I propose a notion of collective virtue that makes it easier to understand environmental harm, our biggest collective-action problem, as a moral problem for which we are all responsible. Following Larry May and Gregory Mellema, I distinguish individual from shared and from collective responsibility. I then introduce parallel distinctions between individual, shared and collective character. I explore the interaction between character traits at the individual and group levels, and finally show how these distinctions help to clarify how responsibility for collective action and character forms part of individual environmental virtue.