This master's thesis explores the key aspects that define the challenges and advantages of Liquefied Natural Gas (LNG) carriers navigating Arctic shipping routes. The first objective is to review the technical innovations that have significantly contributed to improving the efficiency of these vessels, particularly in the context of the extreme weather conditions characteristic of the Arctic. Additionally, safety measures have been implemented under the International Code for Ships Operating in Polar Waters, known as the "Polar Code," to reduce the risks associated with navigation through this sensitive area. The Code is a comprehensive legal framework adopted by the International Maritime Organization (IMO) and came into force on January 1, 2017. The Arctic, a region known for its harsh climate and vast frozen expanses, is increasingly recognized as a new and potentially significant shipping route for LNG carriers. Global climate change, which is causing the rapid melting of Arctic ice, is enabling the opening of new maritime routes that were previously inaccessible. This shift presents significant V economic opportunities, as it allows for shorter and faster routes between key economic centers, such as Europe and Asia. The use of these routes greatly reduces sailing time and transportation costs, making LNG even more competitive in the global market. Navigating the Arctic presents numerous challenges, particularly in terms of environmental and safety sustainability. The sensitivity of the Arctic ecosystem demands careful planning and execution of maritime operations to minimize risks. Although Arctic navigation shortens shipping routes, reducing emissions and pollution associated with longer voyages, the threat of environmental disasters remains. For instance, oil or LNG spills in the event of an accident could seriously endanger the unique Arctic environment. Emissions from ship engines can also contribute to the acceleration of ice melting, further emphasizing the importance of strict application of environmental standards and protective measures to preserve the balance of this fragile ecosystem while meeting economic interests. In addition to environmental challenges, navigating Arctic waters requires significant infrastructure, including specialized ships capable of ice navigation, as well as ports and terminals adapted to Arctic conditions. Cooperation between the countries that share this region and the private sector is crucial for the development and implementation of technologies that will enable the safe and efficient movement of LNG carriers through this challenging environment. While the Arctic offers extraordinary opportunities for shortening shipping routes and reducing LNG transportation costs, the success of this initiative depends on balancing economic benefits with the need to preserve the fragile Arctic ecosystem. The long-term sustainability of these routes requires international cooperation, rigorous regulation, and the adoption of advanced technologies that will ensure the safe and responsible use of the Arctic as a shipping route. The final aspect addressed relates to the environmental implications of using LNG in transportation, with an emphasis on reducing emissions and the sustainable use of Arctic maritime routes. Through the analysis of these factors, the thesis provides a comprehensive insight into contemporary shipping practices and the challenges faced by operators in Arctic waters.