Formation of reliable sources of information on greenhouse gas emissions from agri-food systems is necessary to substantiate the strategy and tactics of their low-carbon transformation. In this paper, modern and widely used in practice databases on the carbon footprint of national agro-food systems are considered: FAOSTAT, bases of the European mission Copernicus, EDGAR-FOOD and WRI-CAIT (in the field of agriculture). The national system for monitoring and accumulating data on carbon emissions and balances in terrestrial ecosystems will provide an opportunity to obtain independent information on Russia's impact on climate change. Only an independent information and analytical system can be the basis for making government decisions in the field of low-carbon development in our country. Such a system is also being developed in Russia. The article touches upon the main capabilities and tasks of the information-analytical system "Uglerod-E", developed on the basis of the Institute of Space Research, for modeling the dynamics of the carbon balance of territorial agro-food systems.