From 9th to 10th October 2014 will be held the workshop : "MED-MaHb: The Mediterranean Sea mass and heat budget: Understanding its forcing, uncertainties and time evolution" in the IMEDEA (CSIC-UIB) research centre, placed in Palma de Mallorca, Spain. The goal of this workshop is to encourage discussions and strengthen high-level international scientific cooperation on the assessment of the mass and heat budgets of the Mediterranean Sea from in situ and remote sensing measurements, sea level re-constructions, ocean synthesis, reanalyses products and coupled ocean-atmosphere models.