TASKS The methodology of the C3N project is organised in five tasks: Task 1: Analysis of the interaction of meteo-oceanographic variables and natural systems. Subtask 1.1. Selection and collection of meteo-oceanographic variables. Subtask 1.2. Time-space variability of natural systems. Subtask 1.3. Definition and selection of physical indicators. Task 2:Modelling of potential natural ecosystems distribution (exposure and vulnerability). Subtask 2.1. Present spatial distribution of natural ecosystems (exposure). Subtask 2.2. Tolerance thresholds of natural ecosystems (vulnerability). Task 3: Projection of meteo-oceanographic variables under climate change scenarios (hazards). Subtask 3.1. Selection of Representative Concentration Pathways (RCPs). Subtask 3.2. Statistics downscaling. Task 4: Study of the impact of climate change over natural systems. Task 5: Dissemination and transfer of the obtained results.