At present, with the rapid development of economy, excessive consumptions of resources are increasingly leading to serious environmental pollution and shortage of environmental resources.The scarcity of environmental resources has become a bottleneck of restricting further economic development, so the contradiction between economic development and the environment has become increasingly obvious. For the limitations of the current environmental management problems, emission trading system has been generally receiving attention at home and abroad as a economic means of protecting the environment. Emission trading system is based on the theory of property rights and the theory of economic externalities, under the premise of the determination of the environmental capacity, emissions are allocated to the enterprise in the form of emission permits, and emission target can be traded in the market to achieve the target of total control.As the first nation about studying on emission trading system, the United States conducts a large number of trading practices and achieves success. Then,other western countries such as Australia, Britain etc also carries out the practice of emissions trading and achieves good results. Although China has already carried out a lot of researches on emission trading system, conducted some pilot practice of emission trading and obtained some achievements, China is still in its infancy.In view of the status of environmental pollution in China, this paper starts from the research of domestic and international emissions trading, discourses the theoretical basis of emission trading,analyzes the economic reasons resulting from environmental problems by comparison of several environmental management means, and points out that emissions trading system is effective means to optimally allocate environmental resources and protect the environment. Then it explores the framework of emissions trading and issues to be addressed in the trading practices. Finally, Dalian as an example, this paper proposes the procedures and steps of the implementation of emissions trading system by the analysis of industrial layout and environmental conditions in Dalian. Because emissions trading system is a complex system, it is essential to work out emissions trading system that is in line with China's actuality by comparing with the international and domestic typical patterns. |