Fig.1. Lowest seawater carbon dioxide concentration that gives thermodynamic stability for hydrate, relative to a background concentration of 2000 μmoles/kg seawater, versus pressure for 0 degree Celsius (upper curve), 3 degree Celsius, 5 degree Celsius, 7 degree Celsius and 10 degree Celsius (lower curve). (Actual stability concentrations are obtained by multiplying the relative numbers with 2000 μmoles/kg seawater).
