The study of emissions in world science is devoted to various aspects of this phenomenon, various methods are demonstrated in different countries and on different continents The article reveals the experience of creating a unified database on various energy issues, including Greenhouse Emissions (Tons of CO2 Equivalent). The author provides data on emissions and other environmental problems presented by various researchers and justifies the need to create a unified database containing various aspects of environmental and energy issues. As a conclusion the article reveals the advantages of a unified emissions database for global sustainable development. From the study we can see that the data on emissions are scattered, there is no identical formula for calculation, there are no uniform requirements for disclosure of this information by companies, and the complexity of reports makes it difficult for the public to assess the social responsibility of companies. It is necessary to create a unified database of emissions, simple, understandable for users, allowing to compare data for different years, companies and spheres. Thus, the data on greenhouse gas emissions will be commensurate on various grounds and in different territories, which will help achieve the goals of sustainable development in the world.