The IMO has adopted a greenhouse gas reduction strategy in 2018, reinforcing carbon emission regulations which aims 50% reduction in greenhouse gas emissions compared to 2008 by 2050, as well as sulphur oxide emission regulations on ships. Active movements for environmental protection deserve to be welcomed from the perspective of protecting the Earth’s resources. However, it is difficult for the stakeholders who are actually managing ships to welcome this. While profitability is declining with contraction of global cargo transport due to the pandemic, they have faced a situation where additional environmental protection devices that were not needed before or designs for eco-friendly ships with higher technology are required. And as all of this means their burden of extra cost, the current situation is not pleasant for them.