A . The Structural Change of the International Society Until the beginning of the 19^th century, a nation was the only player in the world as a sovereign state. But since the middle of the 20^th century, the born of the European Coal and Steel Community (ECSC) has brought the change of the construction of international society. The establishment of the ECSC showed very unique characters not found in the traditional international society. It means increase of players in the world politics and economy. We have verified that the European Economic Community (EEC) and the European Atomic Energy Community (EAEC) succeeded to the ECSC and in 1992, the European Union (EU) has established. The Union has many policies. One of the most featured of them is that it has a legal entity as legal order. The Legal order is recognized as the European Union law (EU law). All of the policies of the Union are completed through the Union law. It is pointed out that the most important areas of its policies are competition, environmental law, so on. Especially, we must point out environmental law. B . EU and the Environment The EU's environmental policy was established in 1973. It includes air, water, soil and waste, etc. Especially, in air department, the EU has tackled to decrease the greenhouse gas (GHG). The environmental policies of the EU are as follows: 1. The 2001 6^th Action Programme 2. The Kyoto Protocol 3. EU-ETS (Emission Trade System) 4. International Carbon Trade Agreement 5. Regulation (EC) No. 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) 6. Prevention of Forest Destruction 7. Asia-Europe Meeting (ASEM) C . Conclusion In environmental aspect, the EU has legal governance, too. The jurisprudence of the European Court concerning environmental law will establish the direction to become globalization of the EU environmental law.