The biggest threat to the commercial shipping sector from the warming seas will be the increased frequency and intensity of weather hazards driven by ocean warming. These include more intense hurricanes, heavier rainfall and snowstorms as well as shifts in weather patterns so much so that some areas face rainstorms and flooding while others face worsening drought conditions and wildfire risks. There is no need to look further than the drought and water shortages at the Panama Canal which make passage through the canal less reliable and delay vessels.