The report emphasises the potential of current international law to deal with the needs of intragenerational and intergenerational environmental justice and outlines some ideas that go beyond the elements already present in current regulations. In particular, the authors reassess international law building on previous works about the concept of Ecological Debt and Climate Debt, and identify elements in the global legal system that would also allow confronting ecologically unequal exchange based on an eventual process of constitutionalisation.