For 2021 the annual session of Global Forum on Human Settlements (GFHS) will have the thematic session regarding “Sustainable Blue Economy to Support the Green Transformation of Cities”. The event is organized by International Ocean Institute in the 27-29 October 2021 in a format combining online and offline participation. The main aim of the event it will be how cities can use green recovery as a golden opportunity to kick-start a green transformation and drive innovation at all levels and across all sectors, thus enhancing urban safety, resilience and inclusiveness, boosting green growth, and achieving coordinated, healthy, and high-quality sustainable urban development.