(EU HORIZON) The project MICROBES-4-CLIMATE will provide a wider community of users/researchers, irrespective of location, efficient access to a cluster of complementary world-class Research Infrastructures and their integrated, advanced services along with training and scientific and/or technical support, to address such need. An excellence-driven programme of Transnational Access, which is at the core of the project, will enable users to conduct curiosity-driven research addressing terrestrial biodiversity and ecosystems, in light of the abovementioned multidimensional and still poorly understood microbiomes-plants-soil-environment interactions, and its roles in CG responses, resilience, and mitigation. This will foster the advancement of frontier knowledge and also pave the way to applied research on harnessing plant-microbiome interactions to improve the climate resiliency of plants/crops and to enable e.g., precision, sustainable and resilient agriculture.