ML1/CL – Alexander von Humboldt Medal Lecture by Filippo Giorgi (co-organized)

ML2/AS/BG/CL – Alfred Wegener Medal Lecture by Meinrat O. Andreae (co-organized)

ML3/GD/TS – Arthur Holmes Medal Lecture by A. M. Celâl Şengör (co-organized)

ML9/SM – Beno Gutenberg Medal Lecture by Haruo Sato (co-organized)

ML15/HS – Henry Darcy Medal Lecture by Alberto Montanari (co-organized)

ML16/ESSI – Ian McHarg Medal Lecture by Kerstin A. Lehnert (co-organized)

ML18/HS – John Dalton Medal Lecture by Gabriel G. Katul (co-organized)

ML21/CR – Louis Agassiz Medal Lecture Frank Pattyn (co-organized)

ML23/EMRP – Petrus Peregrinus Medal Lecture by Mioara Mandea (co-organized)

ML24/SSS – Philippe Duchaufour Medal Lecture by Yakov A. Pachepsky (co-organized)

ML26/GM – Ralph Alger Bagnold Medal Lecture by Todd A. Ehlers (co-organized)

ML31/G – Vening Meinesz Medal Lecture by Markus Rothacher (co-organized)

ML41/GM – GM Division Outstanding ECS Lecture (Penck Lecture) by Liran Goren (co-organized)

AS3.27 – Mediterranean atmospheric composition, Aerosols & Air Pollution under changing climate (Vilhelm Bjerknes Medal Lecture)

BG3.1 – Biogeochemistry of coastal seas and continental shelves (including Vladimir Ivanovich Vernadsky Medal Lecture) (co-organized)

CL1.21 – On the dynamics of Dansgaard-Oeschger events; perspectives from paleoclimate data and modeling (including Hans Oeschger Medal Lecture and CL Division Outstanding ECS Lecture)

CL1.31 – Climate response to orbital forcing (including Milutin Milankovic Medal Lecture)

CR1.2 – Modelling ice sheets and glaciers and ice-climate interactions (co-organized)

EMRP1.5 – Understanding fluid driven ruptures, from natural earthquakes to reservoirs induced seismicity (EMRP Division Outstanding ECS Lecture) (co-organized)

ERE5.3 – Process quantification and modelling in subsurface utilization (including ERE Division Outstanding ECS Lecture)

G3.2 – Geophysical Signal Separation in Global Geodesy (including G Division Outstanding ECS Lecture) (co-organized)

GD3.1 – Dynamics, structure, evolution and cyclicity of the plate-mantle system in the Earth and planetary bodies (including Augustus Love Medal Lecture) (co-organized)

GD9.1 – Long-term rheology and heat budget of deforming and reacting rocks: from laboratory to geological scales (including GD Divsion Outstanding ECS Lecture) (co-organized)

GI0.1 – Open Session on Geosciences Instrumentation and Methods (including Christiaan Huygens Medal Lecture)

GI3.5 – Innovative instrumentations, techniques, geophysical methods and models for near surface geophysics, cities and transport infrastructures (including GI Division Outstanding ECS Lecture) (co-organized)

GMPV1.1 – Open Session on Geochemistry, Mineralogy, Petrology and Volcanology (including Arne Richter Award Lecture and Robert Wilhelm Bunsen Medal Lecture))

HS1.17 – Towards Global Integrated Hydrology Simulations: Perspectives and Advances in Terrestrial Modeling (including Arne Richter Award Lecture)

NH9.1 – Natural hazard event analyses for risk reduction and adaptation (including Sergey Soloviev Medal Lecture)

NH9.10 – Global and continental scale risk assessment for natural hazards: methods and practice (including Plinius Medal Lecture) (including NH Division Outstanding ECS Lecture) (co-organized)

NP1.1 – Mathematics of Planet Earth (including Lewis Fry Richardson Medal Lecture and NP Division Outstanding ECS Lecture) (co-organized)

OS1.1 – Open Session on General Circulation, Ocean Climate Variability and Air-Sea Interactions (including Fridtjof Nansen Medal Lecture)

PS1.6 – Mars Science and Exploration (including Runcorn-Florenksy Medal Lecture)

PS3.1 – Outer Planets Systems (including David Bates Medal Lecture)

PS4.4 – Planetary Space Weather (including Arne Richter Award for Outstanding ECS Lecture) (co-organized)

SM7.01 – Advances in Computational Seismology (including SM Division Outstanding ECS Lecture)

SSP3.2 – Understanding of marine records and sedimentary processes: From continental environments to the deep-sea (including Jean Baptiste Lamarck Medal Lecture) (co-organized)

SSS3.5 – Assessing the Critical Zone functioning and reconstructing its evolution, based on soils and sediments, interpreting the geochemical composition of soils and sediments with respect to provenance, palaeoenvironments and pollution (co-organized)

ST1.1 – Open Session on the Sun and Heliosphere (including Hannes Alfvén Medal Lecture)

ST1.2 – Preparing for Solar Orbiter, Parker Solar Probe and the heliophysics observatory (including ST Division Outstanding ECS Lecture)

ST2.1 – Open Session on the Magnetosphere (including Julius Bartels Medal Lecture)

TS3.1 – Strain localization from the grain- to the plate-scale: rheology, mechanics and anisotropy (including Stephan Mueller Medal Lecture) (co-organized)

TS5.2 – The Interplay between Earthquakes, the Seismic Cycle and Long-term Deformation: Models and Observations (including TS Division Outstanding ECS Lecture) (co-organized)