Slow steaming is a good way to save on fuel costs and meet the new IMO requirements. So ships have slowed down. But I was amazed at the graph below, showing a trend for quite a while.
Slowing down is an important way of cutting CO2 emissions from fuel oil. It also implies that more ships are needed to meet planned sailings on a scheduled route. It’s a deliberate reduction of individual ship ‘productivity’, since fewer paid cargo-carrying trips can be made in a year. But it may be a better fit with the demand for shipments right now, and it might result in fuller vessels.
We should remember that slow steaming will not eliminate CO2 emissions problems; it’s a stopgap at best. New types of power with very low or zero emissions through their life cycle well-to-wake must be developed. The investments have to be made.
Sam Chambers October 2, 2023
Bulk carriers and containerships moving at slowest speeds on record this year
Supply Chain and Logistics 