Correct Answer: North Atlantic Drift, a warm ocean current flows in the region.

Solution : The correct answer is North Atlantic Drift, a warm ocean current flows in the region.

The Baltic Sea ports are well-known for their capacity to remain open for business even throughout the winter months, and the existence of the North Atlantic Drift, a warm ocean current that flows across the region, plays an important part in this. The North Atlantic Drift, an extension of the Gulf Stream, offers milder and less severe winter weather to the Baltic Sea's coastal regions. While winters can still be bitterly cold, the moderating impact of this warm stream decreases the severity of freezing temperatures and ice formation in comparison to locations further north.