The North Atlantic Warm Current has a significant impact on the climate of northern Europe and western Europe, participated in the formation of temperate maritime climate, and kept the southwest of Barents Sea ice-free.
The reason why Murmansi is not frozen:
Murmansk, the capital of Russia, is the largest port city along the Arctic Ocean. Located in the northeast of kola peninsula, near the Gulf of Cora in Barents Sea. It doesn't freeze all year round. The population is about 426,000. Murmansk Port is the only ice-free port in the Arctic Circle.
It is an important military port in Russia. The main reason for not freezing all year round is the influence of the North Atlantic warm current, with the greatest influence in winter. Western Europe and northern Europe can be influenced by it. Looking at the isotherm map of Europe in January, we will find that the isotherms of western Europe and northern Europe are biased towards high latitudes.