Equilibrium conditions for carbon dioxide hydrate in pure water and aqueous glycerol solutions were measured in order to evaluate the effectiveness of glycerol as an inhibiting agent. The isothermal pressure search method was employed. Twenty-two experiments were conducted in the temperature range of 270.1-280.2 K using glycerol concentrations of 0, 10, 20, and 30 mass % in water. Glycerol was shown to have a considerable inhibiting effect on carbon dioxide hydrate formation though it was not as effective as an inhibiting agent as sodium chloride or methanol.