Last year, four rivers were granted legal rights: the Whanganui in New Zealand, Rio Atrato in Colombia, and the Ganga and Yamuna rivers in India. These four cases present powerful examples of the increasing relevance of rights-centered environmental protection. Like corporations, which have legal rights in many jurisdictions, these rivers are rights-bearing entities whose rights can be enforced by local communities and individuals in court. But unlike corporations, these rights are not yet recognized in international treaties. Which raises the question: what are the implications of rights for nature for international environmental law?

While it is intuitively clear that economic growth is related to water security – understood here as both water availability and also exposure to water-related risks such as drought and floods – there has been very little empirical evidence of this relationship to date.