Mitsubishi Heavy Industries, Ltd. (MHI) has developed a process for recovering CO₂ effectively from the exhaust gas of boilers and other devices in cooperation with the Kansai Electric Power Co., Ltd., which has already been commercialized in the production of urea. This paper presents a review of applications for utilizing CO₂ recovered by this process together with methods for fixing CO₂ as means for helping to prevent global warming. It also describes conditions for making the utilization and sequestration of CO₂ feasible.