Linking shipping to governments' national plans to decarbonise economies is the way to get greener vessels, said a head of innovation at the International Renewable Energy Agency (Irena), ahead of the COP26 climate.

His comments at an International Chamber webinar conference came after Irena released a report last week on the pathway to decarbonise shipping by 2050. The agency forecast that renewable fuels could contribute at least 70% of the shipping sector’s energy mix by then.