The results of investigations in the field of CO2 storage in water-bearing horizons in the area of the Upper Silesian Coal Basin were presented. It has been stated that the CO2 injection process will appear in the area of the storage site and beyond its boundaries. The determination of protective zones for underground CO2 storage and other structural elements, e.g. big tectonic zones, was proposed. These zones will constitute a safety buffer between the underground storage site and utilitarian undertakings conducted in its neighbourhood. In the work the proposal of CO2 injection intensification through controlled fracturing of formations of the future storage site was presented. This action should increase the CO2 injection effectiveness, especially in rock series characterised by average values of reservoir parameters.