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Prolonged increase in atmospheric concentration of CO₂ has led to global warming. One promising way to alleviate this problem is geological CO₂ storage (GCS) in sedimentary reservoirs. These reservoirs must meet certain criteria, such as sufficient storage capacity, injectivity, containment and enough depth to achieve supercritical conditions. Following injection, part of the CO₂ occupies the porous media in structural and/or stratigraphic traps, part is dissolved in water, part is trapped by capillary forces as residual CO₂, and, in case of favorable conditions, a portion may precipitate as carbonate minerals. Among above mechanisms, only the latter, known as CO₂ mineral trapping, guarantees permanent and safe CO₂ storage. This review presents an overview of GCS as a solution for mitigating global warming with a focus on the importance of CO₂ mineral trapping for permanent and safe storage. It discusses the …