The aim of this study was to analyse the feasibility of implementing the Paris Agreement and the provisions regarding the goals of reducing greenhouse gas emissions in the EU through Poland, the Czech Republic, Hungary and Slovakia, i.e., the so-called Visegrad Group States (V4). The basis of the study was an in-depth analysis of the energy policies of the V4 countries, an analysis of energy generation structures, its consumption over the years, and an analysis of measures taken to improve energy efficiency. The analysis was performed as a function of the adopted targets for reducing CO2 emissions by 2020, with a prospect for 2030 and 2050. In all the analysed countries, the energy and heat production sectors were responsible for the highest carbon dioxide emissions. Among the analyzed countries, only Poland failed to meet its commitments regarding the level of greenhouse gas (GHG) reductions adopted by 2020. The achievement of further goals in this area, despite the planned investments and undertaken actions, is also at risk