Pages 323-324
The CO_2 solubility in hydrate forming conditions shows the dual nature in nature, that is, the solubility with hydrate and without hydrate. These solubilities have the opposite temperature dependence. This dual nature of CO_2 solubility in hydrate-forming conditions exerts a great influence on the evaluation of CO_2 ocean sequestration options proposed so far. Especially in the dissolution type, in which CO_2 is released as droplets in the ocean shallower than 2000 meters, this nature of solubility influences the dissolution rate directly. Therefore, it has to be elucidated what conditions are required for each solubility to prevail and how fast the boundary between two solubility propagates in the real ocean.
