Hannan City is working on 51 projects to achieve the SDGs in preparation for the Osaka-Kansai Expo, centering on blue carbon, and with the aim of restoring ecosystems and realizing a sustainable society. We aim to encourage the next generation of children to take an interest in environmental conservation through marine education, to promote the blue economy, and achieve economic growth. Through public-private collaboration, we aim to increase learning and experiences of environmentally friendly living, and to create a sustainable future for the region.

In order to realize a carbon-neutral society, the maritime sector is also being called upon to accelerate the social implementation of zero-emission ships. The pure hydrogen fuel cell ship "Mahoroba" and its energy supply system, which began commercial operation at the Osaka-Kansai Expo in April 2025, represent the first social implementation in Japan. Although hydrogen fuel cell ships have issues with size and cruising range, they are suitable for use as urban transportation modes operating over short distances, such as water buses, and we hope that efforts will be made to popularize them in areas such as certification and inspection of products and equipment.