This paper places the question of ethical challenges in relation to the process of globalization concerning international education and the mobility of international students worldwide. It focuses on five areas of justice, namely, social and political justice, administrative justice, distributive justice, cultural justice and ecological justice. These areas of justice cannot be separated from one another, given the interaction among international students from different cultures, which do not all share the same level of cultural, economic and political power and influence internationally. While stressing the importance of all the areas where justice is called for, it is argued that the area pertaining to ecological justice enjoys primacy in relation to the others, given the growing indications that all of the world's inhabitants face an uncertain future on the planet in the face of anthropogenic eco-systemic degradation. If this is not addressed educationally, all the others would be addressed in vain.