The likely harzards to shipping at the North American end of the North Atlantic sea route are

The North Atlantic sea route, which stretches from Europe to North America, is a major shipping route that has some potential hazards. One of the likely hazards at the North American end of the route is fog. The region is notorious for its thick fog that reduces visibility and makes navigation difficult for ships. Another likely hazard is iceberg. The area is known to have icebergs that break away from the Arctic ice cap and float southward. These icebergs can damage or sink ships, especially those that are not ice-reinforced. It is important for ships to be aware of these hazards and take necessary precautions while navigating the route to ensure safe travel.