Russia is promoting its Northern Sea Route as an alternative trade corridor connecting Europe and Asia via the Arctic. The route’s appeal is based on shortening voyage times compared with the traditional routes around the Cape of Good Hope or through the Suez Canal. However, multiple challenges limit its potential to become a reliable artery for global shipping. Politically, the Arctic route is shaped by governance disputes and differing national interests, which can affect access, regulation, and coordination among stakeholders. Environmentally, Arctic conditions remain difficult and unpredictable. Shipping in these waters depends on sea-ice patterns and weather, which can vary from season to season, creating operational uncertainty. At the same time, the remote and fragile Arctic ecosystem increases the risk and consequences of accidents or pollution, raising the bar for safety and environmental safeguards. Taken together, these factors mean the Northern Sea Route may expand in some circumstances, but it is not yet a straightforward substitute for existing global shipping lanes due to political constraints and environmental risk management requirements.