Adapting to a Foggy Future Along Trans?Arctic Shipping Routes

Rapid retreat of Arctic sea ice extends the area open ocean for new trans-Arctic shipping routes. However, projected routes may be too optimistic in terms savings costs from shortened distances as they do not consider increased fog frequency (SFF) over areas retreating ice. We show that delays due to can 1–4 days, about 23%–27% along Northwest Passage and 4%–11% Northern Sea Route than previous estimated. design a route based on sea-ice extent SFF. The reduce sailing time by 0.3–1 day detouring with lighter impacts fog. More importantly will lower risk catastrophic accidents compared shortest saves additional unscheduled port calls.