Possibilities to sequestrate carbon dioxide emitted to the air from power and power and heat plants by underground storage are discussed. Low fees for emission of this gas are still not favourable for any efforts to its sequestration but these should change along with accession of Poland to European Union. In Poland most of carbon dioxide emission comes from power and power and heat plants which makes such plants the best sites for entrapment of this gas for sequestration by underground storage method. The idea of underground storage of carbon dioxide is presented along with major stages of such process (entrapment, transportation, and storage) and sites usable for such storage. Relevant examples of use of this method in Europe and other parts of the world are given. The experience gathered so far clearly show that successful implementation of this method requires to have both sides, that is CO2 emittents and operators of underground storage reservoirs interested in such operations.