The environmental issues is a fundamental change in human perceptions of life on earth, caused or influenced by human activity, creating ill-effects, such problems commonly regarded as local, regional or national and may have international or global issues which need political action. The concepts of Globalization have brought the world in close proximity and transform the whole world into a global village. Though earth is geographically demarcated, man with his scientific and technical might could not demarcate natural environment and is common to entire universe. The principles of International law are intended to regulate the conduct of state towards safeguarding the environment, peace and freedom of international communities. The function of international law is to promote creative peaceful and harmonious world order. The environment and its protection are common to international community's the sufferance is not confined to pollution originated country but spreads to neighboring countries. The biosphere is same to everyone. Similarly, the existence of man in the biosphere is global one. Thus, global environmental regulation has assumed much significance. In this regard this paper tries to analyze the international convention and treaties.