The climate is a non-equilibrium thermodynamic system where the inhomogeneous absorption of solar radiation activates a variety of positive and negative feedbacks determining the properties of the atmospheric and oceanic circulations (from convective to global scales) and the exchanges of mass, momentum, and energy within the climate system, as well as the overall radiative budget of the planet. Entropy is produced through a variety of irreversible processes involving dissipation and mixing. The thermodynamic approach to the study of the climate system has long been recognized as a fascinating way to explore the physical processes occurring at various scale, their impact on the climate variability, as well as the budgets determining the steady-state properties of the climate system. In this session we welcome contributions on new outcomes of the study of the climate system as a dissipative non-equilibrium thermodynamic system. The interest is on studies involving observational datasets, re-analyses, and model outputs at different spatial and temporal scales, such as the investigation of energy, entropy and water mass budgets due to different processes occurring in the climate system. Additionally, sensitivity studies or analysis of the response of the system to climate change regarding the parameters relevant for thermodynamic systems, such as transports, efficiency, irreversibility are also welcome.