The Knowledge Hub FACCE MACSUR brings together the excellence of research in modelling grasslands, livestock, crops, farms, and agricultural trade in order to illustrate to political decision makers how climate will affect regional farming systems and food production in Europe. To achieve this goal, MACSUR engages in a range of activities, including methodological comparisons of models and use of their outputs (scaling, uncertainty), linking of complementary models from different sectors, involvement of stakeholders, training of young scientists, and establishing a community of practice across a broad range of scientific disciplines.