GEOCARBON is a preparatory project establishing processes and data mining for permitting the future realization of Carbon Farming Calculation Tool(s). The main gap when dealing with carbon balance from agriculture is the lack of Activity Data by farmers that they are related by agriculture management such as crop involved, rotation or not, ploughing type, chemical fertilization type, disinfection type, organic amendment type, etc. This huge amount of information can only be precisely provided by farmers, being the key point. At the centre of our approach lies a Community of Practice (CoP). CoP is a network that will foster the estimation of soil carbon emissions, co-participation in Activity Data acquisition as well as the usability and effectiveness of the suggested tools. This network will integrate farmers, agriculturalists, soil scientists, public – reporting authorities and decision makers. The CoP will interact with a web-GIS (Geographical Information System), an online portal will be developed to store, visualize and process geospatial information from existing databases as well gather Activity Data. The web-GIS will have a bidirectional relationship with the CoP. CoP knowledge will assist in the creation of the environmental geo-database stored in the web-GIS, useful for farming carbon calculation, and the web-GIS will assist CoP in the decision making through data queries and visualization. Our overarching result is to integrate knowledge about farming practices, which are not recorded so far, within the CoP and develop actionable approaches that will be supported by farmers in a seamless integration with their actual behaviour to the field.