Along with the exploding attention to globalization, issues of global justice have become central elements in political philosophy. After decades in which debates were dominated by a state-centric paradigm, current debates in political philosophy also address issues of global inequality, global poverty, and the moral foundations of international law. As recent events have demonstrated, these issues also play an important role in the practice of international law. In fields such as peace and security, economic integration, environmental law, and human rights, international lawyers are constantly confronted with questions of global justice and international legitimacy. This special issue contains four papers which address an important element of this emerging debate on cosmopolitan global justice, with much relevance for international law: the principle of sovereign equality, global economic inequality, and environmental law.

How should liberal societies respond to nonliberal ones? In this paper I examine John Rawls's conception of international toleration against what is sometimes called a cosmopolitan one. Rawls holds that a just international order should recognize certain nonliberal societies, to which he refers as decent peoples, as equal members in good standing in a just society of peoples. It would be a violation of liberalism's own principle of toleration to deny the international legitimacy of decent peoples who, among other things, affirm human rights and accept peaceful coexistence with other societies. According to the cosmopolitan idea of international toleration, on the contrary, only societies that are liberal in character meet the criteria for toleration. I suggest that, against the Rawlsian conception of international toleration, the cosmopolitan idea is more consistent with the fundamentals of liberal political morality. I then clarify the ways in which cosmopolitan toleration is not worryingly interventionist even as it is not altogether toothless; and I end with some reflections on why cosmopolitism is not morally imperialistic.