The International Energy Outlook (by Energy Information Administration, Washington D.C., 2003) shows continuing significant growth of worldwide energy demand, at least by 2025. High contribution of the fossil fuels (~ 87%) in energy production seems to be inevitable. Coal will represent 22-23 % share in the energy production. The separation of carbon dioxide from flue gases and its underground sequestration is essential for the present and near future energy system. According to the Hydrogen Economy Report (by the National Research Council, Washington D.C., 2004), new hydrogen-based technologies will require a transition period of several decades during which the old and new energy system must operate simultaneously. Therefore, a wide usage of coal cannot be excluded, at least by 2025. The import of coal (220x106 t/y) in the European Union is almost 3-fold higher compared with the Union own coal mining production (data of 2001). Majority of the import is derived from distant world regions via marine transport. The energy safety of EU seems to be questionable because of a future instability of the international coal (as well as petroleum) market and of marine terrorism activities. The circumstances in question indicate, an increase of coal production in Poland and its usage within the European Union (in place of the imported coal) would significantly contribute to the energy safety of the EU.