The most prominent issues raised concerned **data** and metadata: availability, accessibility, usability, interoperability, resolution, format and quality. Additionally, the importance of sharing **data** and knowledge (i.e. methodological guidance and research results) was repeatedly raised by respondents, emphasising the need to develop not only technologies and RIs, but also strong, collaborative and proactive networking at different levels. Adaptation more than mitigation was confirmed to be a priority for Africa. Beside the scientific and technical aspects, the solution to most of the constraints could be a comprehensive approach able to consider not only scientific and ecological issues but also socio-economic dynamics (land tenure, urbanisation, jobs opportunities, market, prices, investments, etc), which may influence the success and the long-term sustainability of a RI network. Science alone is not always enough, thus mediation among scientists, traditional leaders and agriculture extension officers could help in facing some of the crucial practical aspects towards implementation. A coherent and thorough analysis and prioritisation of all these issues can therefore help in developing a range of options suitable for specific 'on field' conditions (at national or regional levels). Among the possible options, the developed countries' approach for an RI network on GHG observations was recognised as not being directly applicable to Africa, for different reasons, of which the most important are: high costs for implementation and maintenance, lack of qualified personnel and specialised companies, problems with energy supply, accessibility and protection of field sites, and challenging eco-climatic conditions.