This Article examines Catholic Social Teaching’s approach to the challenges of human migration and environmental refugees. By juxtaposing the inadequacies of current international frameworks for protecting environmental migrants with previous sources of Catholic Social Teaching, this Article speculates on the possible moral argument to be made by the Church in support of efforts to fill a gap in the international legal framework around climate change induced migration. Ultimately, the Paper speculates that such an argument would include three components: (1) a broadening of the definition of refugee, (2) a recognition of our interconnected and interdependent lives, and (3) the expectation that those responsible for climate change have a special obligation to care for those most vulnerable to it
