1. The present invention discloses a method and a system of facilities for energy conversion using carbon dioxide. 2.1 In comparison with water, carbon dioxide has a lower thermal capacity. Nevertheless, in the critical energy density range of the carbon dioxide, the materials used must withstand a high pressure and temperature. As a result of its low critical point, carbon dioxide can still be used efficiently for the energy conversion of natural heat into work. 2.2 To achieve this, containers are filled with a large amount of CO2 which is heated by heat, e.g. climatic heat. This establishesthe basis for the CO2 expansion in heat engines. Prior to the expansion process, the CO2 pressure fluctuations are smoothed and the CO2 fluids are heated further as they flow to the heat engines. After expansion, the fluids can be condensed by e.g. climatic cold. To obtain climatic cold or heat, local or temporal bridging by a CO2 transport facility or a CO2 storage facility is required. In addition to its storage function, the CO2 storage facility also has heating and cooling functions which are adapted to the output of the heat engines. This solves the problem of slower heat transfer of theheat exchangers in relation to faster operation of the heat engines. The CO2 processes in the containers of the CO2 storage facility, such as the heat transfer process, also do not run continuously but in batches. The CO2 circulation process in the CO2 heat engine facility is therefore a transient flow process. 2.3 The problems of climate change, energy shortages and optionally also desertification can thus be economically and efficiently solved.