This chapter explores the problems that environmental damage in armed conflict pose to the determination of shared responsibility, and especially the determination of reparations, in the context of the jus post bellum. When two actors are engaged in armed conflict, there arise no serious issues as to sharing responsibility for violations. But the fact that modern armed conflicts often involve more than two actors (e.g. Libya 2011) complicates the matters arising out of environmental harm, as there may be two or more actors contributing to the same harmful event. This is a typical situation of shared responsibility. Shared responsibility provides that the problem of reparations for environmental harm is to be examined in situations where there is a multiplicity of actors that contribute to a single harmful outcome. This definition covers the breach of obligations under jus ad bellum and jus in bello, as well as under international environmental law.
