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The carbon emission of shipping industry accounts for about 3% of the global total. With the continuous growth of international trade, the decarbonization and carbon neutralization of shipping industry has become an important direction for future development. New technologies, fuels and operational measures can help reduce the industry’s greenhouse gas emissions, but without appropriate laws and policies, it will be difficult to achieve the targets set by the industry. Therefore, this paper reviews the decarbonization laws and policies introduced by International Maritime Organization, the European Union and the national levels. Then, this paper reviews the literature from two aspects: applicability and evaluation of laws and policies, improvement of laws and policies. On this basis, we summarize the challenges of shipping in formulating laws and policies and suggestions for improving them. Among them, the most important problem is the coordination between unilateral regulation and uniform regulation. Finally, this paper proposes the development principles based on shipping decarbonization laws and policies, that is, to comply with the principle of “common but differentiated responsibilities”, to coordinate the relationship between international trade and international environmental protection, and to guarantee technical assistance to developing countries.
Dong et al. (Tue,) studied this question.