It looks like there's nothing in the way to put something like one of those kite-sails meant for cargo ships on a ship like this one to reduce the fuel needs and hence the carbon footprint even more.
Add a retractable/foldout solar array for low seas and low wind, add solar capture to the sail fabric, add windmills for side/tailwind conditions too.
Would probably need to be part of a hybrid powerplant though, but if you could get even 10-20% efficiency it might pay for itself in shipping where the boats are in service for a long time usually.
Long range shipping, like air travel, is a major hole in low-carbon strategies right now. Biodiesel or fuel-from-excess-solar/wind might be the only other option.
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It looks like there's nothing in the way to put something like one of those kite-sails meant for cargo ships on a ship like this one to reduce the fuel needs and hence the carbon footprint even more.
Add a retractable/foldout solar array for low seas and low wind, add solar capture to the sail fabric, add windmills for side/tailwind conditions too.
Would probably need to be part of a hybrid powerplant though, but if you could get even 10-20% efficiency it might pay for itself in shipping where the boats are in service for a long time usually.
Long range shipping, like air travel, is a major hole in low-carbon strategies right now. Biodiesel or fuel-from-excess-solar/wind might be the only other option.
Or thorium powerplants for ships.