The article discusses the pressing issue of atmospheric pollution caused by shipping, which significantly contributes to carbon dioxide (CO2), nitrogen oxides (NOX), and sulfur oxides (SOX) emissions. Given the worldwide push to decarbonize and mitigate the effects of climate change, this article proposes a well-rounded strategy for energy optimization and administration in the shipping industry. The study aims to evaluate current emission levels, assess the effectiveness of contemporary methods of reduction, and scrutinize worldwide regulations and policies that address the issue. The article presents a comprehensive analysis results of shipping effects on air pollution and appraises the potential of new technologies. It suggests detailed strategies for energy rationalization and decarbonization. The paper identifies the significant impact of shipping on atmospheric pollution and climate change. An analysis is conducted on the effectiveness of various technologies, such as alternative fuels and exhaust gas treatment systems, for reducing emissions. Additionally, weaknesses in current international policies and regulations regarding this issue are assessed, and suggestions for optimization are proposed. Effective energy management and decarbonization strategies have been shown to significantly reduce emissions in the shipping industry. This article proposes several recommendations for future research and practical measures that can contribute to energy rationalization and decarbonization. Overall, the article contributes significantly to the development of effective methods for energy rationalization and decarbonization in maritime transport. The recommendations outlined in the article can form the foundation for forthcoming research and practical actions in the shipping sector.