This article highlights the need to reduce carbon dioxide emissions by reducing energy consumption. Of course, this can be achieved in various ways, but inter alia, through the practical implementation of the assumptions contained in the CSR programs of individual companies, which include a component on environmental protection and counteracting global warming. The authors also describe a proposal to reduce CO2 emissions by using coke oven gas (if necessary) in exchange for natural gas. Currently, the largest sources of carbon dioxide emissions are the combustion of fossil fuels in power plants, transport—cars and planes, processes related to the production of industrial goods, and deforestation. In the preparation of the article, the analysis of the literature on the subject, analysis of documents, desk research, and two case studies were used. The main goal of the article is to present the possibilities of reducing CO2 emissions by implementing the assumptions of the CSR policy on the example of a selected company (models of such activities are also given). Therefore, the aim of the article is to present selected activities that can contribute to the reduction of carbon dioxide emissions in enterprises; of course, this is specific each time and should be individually selected for each enterprise depending on financial, environmental, and any other conditions. This means that almost all enterprises, organizations, and all other institutions should be obliged to implement an individual environmental policy related to the possibility of reducing carbon dioxide emissions worldwide, and the effects of implementing the assumptions of this policy should be regularly, at least once a year, presented in the CSR reports of a given organization. However, each organization should provide its own examples of how it reduces carbon dioxide emissions. For this reason, this article presents an example of the Marcel CHP plant, which, due to its capabilities, also uses coke oven gas, the use of which results in lower emissions of carbon dioxide than natural gas. Additionally, the article presents a comparative analysis of the use of coke oven gas instead of natural gas. The obtained results show the significant and real possibilities of reducing carbon dioxide emissions.