In this article, the role of CO₂ geological sub-seabed storage in the field of climate change is discussed, as well as the development trends of CO₂ geological sub-seabed storage in China and abroad. Furthermore, countermeasures for the development of this technology are proposed. From the aspects of geological structure characteristics and coastal industrial layout, China has the advantages of developing CO₂ geological sub-seabed storage. A large number of foreign engineering applications have proved the feasibility and effectiveness of the technology. In recent years, engineering practices have also been launched in China. CO₂ geological sub-seabed storage has been subject to the jurisdiction of international conventions, and some developed countries have established special management systems. Combined with China's overall positioning for the development of CO₂ geological sub-seabed storage based on carbon peak and carbon neutrality goals, the possible challenges in the future are elaborated and corresponding countermeasures are proposed.

carbon dioxide  /  carbon neutrality  /  geological storage  /  sub-seabed geological formations