US1 – Vegetation-climate interactions across time scales (co-organized)

US2 – Union symposium: ESA / NASA

ML1 – Alexander von Humboldt Medal Lecture by Johan Bouma (co-organized)

ML2 – Alfred Wegener Medal Lecture by Murugesu Sivapalan (co-organized)

ML3 – Arthur Holmes Medal Lecture by Jean-Pierre Brun (co-organized)

ML4 – Jean Dominique Cassini Medal Lecture by Luciano Iess (co-organized)

ML16 – John Dalton Medal Lecture by Dani Or (co-organized)

ML19 – Louis Agassiz Medal Lecture by Eric Rignot (co-organized)

ML20 – Louis Néel Medal Lecture by Christopher J. Spiers (co-organized)

ML21 – Milutin Milankovic Medal Lecture by Axel Timmermann (co-organized)

ML22 – Petrus Peregrinus Medal Lecture by John Tarduno (co-organized)

ML23 – Philippe Duchaufour Medal Lecture by Peter Smith (co-organized)

ML25 – Ralph Alger Bagnold Medal Lecture by Ellen Wohl (including reception) (co-organized)

ML26 – Robert Wilhelm Bunsen Medal Lecture by D. Graham Pearson (co-organized)

ML29 – Vening Meinesz Medal Lecture by Isabella Velicogna (co-organized)

ML39 – GM Division Outstanding ECS Award Lecture & Penck Lecture by Dirk Scherler (co-organized)

LRS1 – 12th C.F. Gauss Lecture

LRS3 – The Bullerwell Lecture of the British Geophysical Association presented by Juliet Biggs (University of Bristol) on Magma Storage and Ascent

LRS4 – Georg-Wüst Medal Lecture by Ilker Fer & Reception

AS3.1 – Aerosol Chemistry and Microphysics (Arne Richter Award for Outstanding ECSs Lecture by Federico Bianchi)

AS4.2 – Impacts of cosmic dust in the terrestrial and other planetary atmospheres (including Vilhelm Bjerknes Medal Lecture)

BG1.2 – Application of stable isotopes in Biogeosciences (co-organized by the European Association of Geochemistry (EAG)

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

CL1.28 – Quaternary glacial-interglacial transitions: causes and effects

CL4.04 – Decadal to millennial scale climate variability of the late Quaternary (co-organized)

CR1.1 – State of the Cryosphere: Observations and Modelling (co-organized)

EMRP1.3 – Earthquakes: from slow to fast, from the field to the laboratory (incl. Division Outstanding ECS Award Lecture by Marie Violay) (co-organized)

G1.4 – High-precision GNSS: methods, open problems and Geoscience applications

GD2.1 – Geodynamics of continental crust and upper mantle, and the nature of mantle discontinuities (including Augustus Love Medal Lecture) (co-organized)

GD3.2 – Understanding Earth’s mantle with links to geological cycles (co-organized)

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

GI3.1 – Civil Engineering Applications of Ground Penetrating Radar

GMPV3.4 – Progress in Metamorphic Geology: Petrochronology (including GMPV Division Outstanding ECS Award Lecture)

HS2.1.4 – Catchment Organisation, Similarity, and Evolution

NH1.3 – Flood risk and uncertainty (including Plinius Medal Lecture) (co-organized)

NH2.2 – Volcano Records and Quantification of Volcanic Hazards (including Sergey Soloviev Medal Lecture) (co-organized)

NH9.1 – Natural hazard event analyses for risk reduction and adaptation (co-organized)

NP2.1 – ENSO: Dynamics, Predictability and Modelling (including Lewis Fry Richardson Medal Lecture)

OS1.7 – Southern Ocean physical and biogeochemical processes from continental shelves to the open ocean (including Fridtjof Nansen Medal Lecture)

PS7.1 – Origin of life and habitability: From Early Earth to the Solar System and Beyond

SM1.1 – General Contributions on Earthquakes, Earth Structure, Seismology (including Beno Gutenberg Medal Lecture)

SM8.1 – Induced and Triggered Seismic Activity: Observation, Theory and Hazard Analysis

SSP2.4 – Mass Extinctions, Volcanism, Impacts, and Catastrophic Environmental Changes: Observations and Processes (sponsored by IAS and SEPM) (including Arne Richter Award for Outstanding ECSs Lecture by Yadong Sun) (co-organized)

SSS9.3 – Fire impacts on the Ecosystems (including SSS Division Outstanding ECS Award Lecture)

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

ST1.9 – Solar Magnetic Field, Helicity And Solar Eruptions (including Arne Richter Award for Outstanding ECSs Lecture by Julia K. Thalmann)

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

TS3.1 – Strain localisation and rheology of the lithosphere in nature, experiments and theory. Including the Stephan Mueller Medal lecture by Cees Passchier (co-organized)

TS7.3 – Initiation of subduction zones in context of the Wilson cycle. Including the Arne Richter Award lecture by João Duarte. Co-organised with GSA-SGT and AGU-Tectonophysics (co-organized)