Highlights at a glance

08:30 –How to communicate uncertainty to non-expert audiences (EOS1.6 PICO PICO spot 3), Advancing Measurements and Observations in the Geosciences (US6 Room E1), ST Division Outstanding ECS Award Lecture by Karin Dissauer 'Footprints of Giants – Exploring Early Diagnostics of Coronal Mass Ejections Through Coronal Dimmings' (MAL49 Room L1), Elevate your Pitch: Developing Engaging Scientific Presentations (SC2.11 Room -2.82), DataViz: Visualise your data effectively and avoid common pitfalls (SC3.7 Room -2.62), Caribbean Geodynamics (GD9.2 orals Room D2), Lakes and inland seas in the changing environment (HS10.4 Room B),
10:45 – Will digital technologies close or widen gaps within the geosciences? (GDB2 Room E1), Frontiers in Geomorphology (GM1.1 orals Room D3), GM Division Outstanding ECS Award Lecture by Jana Eichel 'Feedbacks between moving mountain slopes and dynamic mountain plants' (MAL42 Room D3), How to get involved with EGU (SC1.2 Room -2.82), Meet the Editors (1 & 2): How to write, revise and publish your manuscript (SC2.12 (CEST) Room -2.62), Geoethical values, principles and behaviours: A participatory workshop (onsite only) (SC1.7 Room 0.55)
12:45 – Early Career Scientist (ECS) Forum (NET11 Room 3.16/17), Jean Dominique Cassini Medal Lecture by Raymond Pierrehumbert 'The geology of planetary atmospheres' (MAL4 Room E1),
14:00 – The Role of Large Language Models (LLMs) in Transforming Geosciences: Friend, Foe, or Fad? (GDB3 Room E1), Arne Richter Award for Outstanding ECS Lecture by Frederik Kratzert 'Long Short-Term Memory networks in hydrology: From free-time project to Google’s operational flood forecasting model' (MAL6 Room C), Katia and Maurice Krafft Award Lecture by Heather Handley 'An impact-driven approach to geoscience communication' (MAL10 Room -2.93), Meet the Editors (3): How to peer-review – Fundamentals & EGU’s model (SC2.13 Room -2.62), Using distributed databases in your citizen science research (SC4.5 Room -2.82), Datacube Analytics: What Really Works (onsite only) (SC4.7 Room 0.55),
16:15 – Science and Activism – Compatible or Antithetical? (GDB7 Room E1), The Ice Giants: Investigating the Planetary Systems of Uranus, Neptune, and Beyond (PS2.4 on-site posters Hall X4), Brittle and ductile deformation of Earth’s lithosphere: Mechanisms governing deformation style (TS1.3 orals Room G2), Intercultural Science Communication: overcoming barriers for effective engagement (onsite only) (SC3.2 Room 0.55), Good programming practices for scientists. Essential rules for efficient programming (SC3.17 Room -2.82), Taming Big Earth Data with cloud-based processing on WEkEO (SC4.17 Room -2.62)
19:00 – Interoperability between datasets with regards to their different levels (SC4.6 Room -2.82), Harnessing the Power of Pangeo: Enhancing Your Scientific Data Analysis Workflow with scalable open source tools (SC4.14 Room -2.62), John Dalton Medal Lecture by Paolo D'Odorico 'The ‘safe operating space’ for global and local water use under climate and societal change' (MAL18 Room B), Hans Oeschger Medal Lecture by Heather Marie Stoll 'Clarifying past AMOC and climate sensitivity with paleoclimate archives' (MAL14 Room F2), Stephan Mueller Medal Lecture by Heidrun Kopp 'The Dynamic Seafloor: Enhancing Our Knowledge of Seafloor Processes' and Arne Richter Award for Outstanding ECS Lecture by Renelle Dubosq 'The Dynamic Seafloor: Enhancing Our Knowledge of Seafloor Processes' (MAL30 Room G2), Ralph Alger Bagnold Medal Lecture by Christopher D. Clark 'Landforms in focus; riding the wave of increasing spatial resolution' (MAL26 Room D1), Robert Wilhelm Bunsen Medal Lecture by Trevor Russell Ireland 'The Provenance of Earth's Water' (MAL27 Room -2.31), Petrus Peregrinus Medal Lecture by Nils Olsen 'Exploring Earth's Magnetic Field from Space: Challenges and Opportunities' and EMRP Division Outstanding ECS Award Lecture by Carolina Giorgetti 'The Role of Stress Field on Fault Reactivation: What We Can Learn from Experimental Rock Deformation' (MAL23 Room -2.33), Philippe Duchaufour Medal Lecture by Wulf Amelung 'Ways out of the global soil crisis: opportunities and risks' and SSS Division Outstanding ECS Award Lecture by Katerina Georgiou 'Limits, controls, and vulnerability of mineral-associated soil organic carbon' (MAL24 Room G1), Vening Meinesz Medal Lecture by René Forsberg 'Gravity, Climate and Quantum' and G Division Outstanding ECS Award Lecture by Matthias Schartner 'The art of VLBI scheduling' (MAL31 Room K1), Vladimir Ivanovich Vernadsky Medal Lecture by Corinne Le Quéré 'Carbon storage by the ocean in a changing climate' and BG Division Outstanding ECS Award Lecture by Getachew Agmuas Adnew '∆′17O of Atmospheric CO2 as a tracer for gross fluxes of terrestrial carbon cycle' (MAL33 Room N1)

Advancing Measurements and Observations in the Geosciences

Measurements and observations are essential to the development and advancement of understanding in the geosciences. Measurements are also critical to the detection and quantification of long term change and short term hazards, at a time when non-stationarity in Earth systems is increasing and extreme events are occurring daily. For many regions and domains however, observational networks are lacking, while the need for information is increasing due to growing human populations, intensifying geopolitical pressures and Earth’s rapidly changing climate. To ensure the long term success of the geosciences, and the health of our planet, it is imperative that advances in measurement science continue and that knowledge and information is shared effectively within our community, and beyond. This Union-wide session will showcase the most exciting advances in measurement, monitoring and observational tools and data systems, and look to the future to see what new possibilities exist.

US6: 08:30–10:15 (CEST) Room E1

Medal and Award lectures

ST Division Outstanding ECS Award Lecture by Karin Dissauer 'Footprints of Giants – Exploring Early Diagnostics of Coronal Mass Ejections Through Coronal Dimmings' (MAL49 08:35–08:50 (CEST) Room L1)
GM Division Outstanding ECS Award Lecture by Jana Eichel 'Feedbacks between moving mountain slopes and dynamic mountain plants' (MAL42 10:50–11:20 (CEST) Room D3)
Jean Dominique Cassini Medal Lecture by Raymond Pierrehumbert 'The geology of planetary atmospheres' (MAL4 12:45–13:45 (CEST) Room E1)
Arne Richter Award for Outstanding ECS Lecture by Frederik Kratzert 'Long Short-Term Memory networks in hydrology: From free-time project to Google’s operational flood forecasting model' (MAL6 14:05–14:35 (CEST) Room C)
Katia and Maurice Krafft Award Lecture by Heather Handley 'An impact-driven approach to geoscience communication' (MAL10 14:55–15:25 (CEST) Room -2.93)
Stephan Mueller Medal Lecture by Heidrun Kopp 'The Dynamic Seafloor: Enhancing Our Knowledge of Seafloor Processes' and Arne Richter Award for Outstanding ECS Lecture by Renelle Dubosq 'The Dynamic Seafloor: Enhancing Our Knowledge of Seafloor Processes' (MAL30 19:00–20:00 (CEST) Room G2)
John Dalton Medal Lecture by Paolo D'Odorico 'The ‘safe operating space’ for global and local water use under climate and societal change' (MAL18 19:00–20:00 (CEST) Room B)
Hans Oeschger Medal Lecture by Heather Marie Stoll 'Clarifying past AMOC and climate sensitivity with paleoclimate archives' (MAL14 19:00–20:00 (CEST) Room F2)

Ralph Alger Bagnold Medal Lecture by Christopher D. Clark 'Landforms in focus; riding the wave of increasing spatial resolution' (MAL26 19:00–20:00 (CEST) Room D1)
Robert Wilhelm Bunsen Medal Lecture by Trevor Russell Ireland 'The Provenance of Earth's Water' (MAL27 19:00–20:00 (CEST) Room -2.31)
Petrus Peregrinus Medal Lecture by Nils Olsen 'Exploring Earth's Magnetic Field from Space: Challenges and Opportunities' and EMRP Division Outstanding ECS Award Lecture by Carolina Giorgetti 'The Role of Stress Field on Fault Reactivation: What We Can Learn from Experimental Rock Deformation' (MAL23 19:00–20:00 (CEST) Room -2.33)
Philippe Duchaufour Medal Lecture by Wulf Amelung 'Ways out of the global soil crisis: opportunities and risks' and SSS Division Outstanding ECS Award Lecture by Katerina Georgiou 'Limits, controls, and vulnerability of mineral-associated soil organic carbon' (MAL24 19:00–20:00 (CEST) Room G1)

Science and Activism – Compatible or Antithetical?

Many of the challenges of today raise difficult questions about what the role of scientists should be in relation to issues from climate change and Net Zero policies to implementation of nature-based solutions to reduce risk of flooding, drought and diffuse pollution. Scientists working in such areas are understandably passionate about their areas of research and practice and there is a strong temptation to be active in promoting certain policies and action. However, there is a real tension between the need for objectivity as a scientist and pursuing an activist agenda. Is it possible to do both without compromising our integrity as scientists? This debate will explore this tension in conversation between the audience and an expert panel. Come along, hear the arguments and have your say!

GDB7: 16:15–18:00 (CEST) Room E1

Vening Meinesz Medal Lecture by René Forsberg 'Gravity, Climate and Quantum' and G Division Outstanding ECS Award Lecture by Matthias Schartner 'The art of VLBI scheduling' (MAL31 19:00–20:00 (CEST) Room K1)
Vladimir Ivanovich Vernadsky Medal Lecture by Corinne Le Quéré 'Carbon storage by the ocean in a changing climate' and BG Division Outstanding ECS Award Lecture by Getachew Agmuas Adnew '∆′17O of Atmospheric CO2 as a tracer for gross fluxes of terrestrial carbon cycle' (MAL33 19:00–20:00 (CEST) Room N1)

How to communicate uncertainty to non-expert audiences

All science has uncertainty. Global challenges such as the Covid-19 pandemic and climate change illustrate that an effective dialogue between science and society requires clear communication of uncertainty. Responsible science communication conveys the challenges of managing uncertainty that is inherent in data, models and predictions, facilitating the society to understand the contexts where uncertainty emerges and enabling active participation in discussions. This session will share presentations by both individuals and teams on communicating scientific uncertainty to non-expert audiences.

EOS1.6 PICO: 08:30–10:15 (CEST) PICO spot 3

Early Career Scientist (ECS) Forum

Early Career Scientists are invited meet over lunch to provide feedback on the ECS experience at the Assembly, and learn about what EGU does for its ECS community throughout the year.

NET11: 12:45–13:45 (CEST) Room 3.16/17

Urban Geology Tour

Join the Urban Geology Tour of Vienna, organised by EGU’s Early Career Scientist team. Geoscientists Bernhard Salcher (University of Salzburg) and Stephanie Neuhuber (BOKU ) will guide you through Vienna and its surroundings, including a visit to the National Park Alte-Donau, Danube power plant, and the cemetery of Vienna. Our guide will bring us on a voyage between geomorphology, structural geology, renewable energy, and the history of Vienna. Open to all Union members.

Pop up event: 13:45–18:30 CEST, offsite - by registration only.

Will digital technologies close or widen gaps within the geosciences?

Digital technologies — including artificial intelligence (AI)/machine learning, digital twins, and extended reality — can bring benefits across the geosciences. For example, AI can be used to process large climate data sets, support detection, causation, and attribution of climate impacts, and provide climate services. Digital twins can enable us to monitor and simulate large-scale processes and their interactions. Finally, the use of extended reality to integrate observations into decision making has been explored in several areas such as natural hazards, disaster risk reduction, and spatial sciences. This Great Debate will discuss a range of ideas including initiatives to fill data and communication gaps, to support digital education, and to develop best practices and standards.

GDB2: 10:45–12:30 (CEST) Room E1

The Role of Large Language Models (LLMs) in Transforming Geosciences: Friend, Foe, or Fad?

Large Language Models (LLMs) and other advanced AI tools are reshaping how researchers and practitioners approach data analysis, synthesis, and communication across Geosciences. This Great Debate at the EGU General Assembly 2025 aims to critically examine the impact of LLMs in fields such as Seismology, Atmospheric Sciences, and Earth and Space Science Informatics. As these models grow increasingly capable of interpreting complex datasets, generating predictive models, and even drafting research manuscripts, they raise profound questions about their role and limitations in scientific workflows. The discussion will address key issues, such as the potential of LLMs to accelerate discovery through data-driven insights, their capacity to support real-time decision-making during natural hazards, and the ethical considerations of AI-generated content in peer-reviewed publications.

GDB3: 14:00–15:45 (CEST) Room E1

Caribbean Geodynamics

The Caribbean region is an ideal natural laboratory for studying long- to short-term deformation processes along plate boundaries. Indeed, the Caribbean plate has been individualized since at least 140 Ma and its boundaries are still deforming today. Earthquakes in the Caribbean are a stark reminder of the dangers posed by active deformation along the densely populated boundaries of the Caribbean plate, where vulnerability is often extremely high. Over the past decades, these boundaries have been the focus of extensive international research, providing new insights into the geodynamics of the region and the broader geological processes occurring in subduction and strike-slip zones. This includes studies on fluids, seismicity, deformation partitioning, and mantle dynamics, as well as the reorganization of plate boundaries in response to changes in plate kinematics—such as suturing, the migration, extinction, or initiation of volcanic arcs, and deformation or vertical movement.

GD9.2 orals: 08:30–10:15 (CEST) Room D2, on-site posters: Fri, 02 May, 08:30–10:15 (CEST) Hall X1

Lakes and inland seas in the changing environment

As confined water bodies, lakes and inland seas are particularly vulnerable to climatic and human impacts accumulated over broad catchment areas. Hence, they mirror both the global change effects and anthropogenic pressures stronger than any other aquatic objects. The session brings together specialists in limnology, hydrology, boundary-layer meteorology, and oceanography of inland seas to discuss the role of lakes in the land-atmosphere interaction, the response of lakes and inland seas to global change, the physical and biogeochemical interactions within the enclosed aquatic systems. The session offers an interdisciplinary forum for discussing novel advances in observational, modeling and remote sensing studies on lakes.

HS10.4: orals: 08:30–12:15 (CEST) Room B, Fri, 02 May, 08:30–12:25 (CEST) Room B, son-site posters: Fri, 02 May, 14:00–15:45 (CEST) Hall A, virtual posters: Thu, 01 May, 14:00–15:45 (CEST) vPoster spot A

The Ice Giants: Investigating the Planetary Systems of Uranus, Neptune, and Beyond

The Uranus and Neptune planetary systems are among the most intriguing and least explored in our Solar System, presenting exciting opportunities for new discoveries. This session will share studies of interdisciplinary topics covering all aspects of ice giant systems, including atmospheres, interior structure, ionospheres, magnetospheres, rings, and satellites. The session will also present research that advances our understanding of the ice giant systems from a range of perspectives including observations, modelling, theory, and laboratory work.

PS2.4: on-site posters: 16:15–18:00 (CEST) Hall X4, virtual posters: 14:00–15:45 (CEST) vPoster spot 3

Brittle and ductile deformation of Earth’s lithosphere: Mechanisms governing deformation style

Classic models predicting a depth that separates brittle deformation in the upper crust from a region below in which deformation is dominated by ductile processes have long been outdated. In fact, the deformation behavior of Earth’s lithosphere is more complex and brittle and ductile processes may interact throughout the lithosphere. In the rock record, brittle deformation may be expressed as features ranging from micro-fracturing of mineral grains up to seismic ruptures (e.g., pseudotachylytes) or large-scale faults, and ductile deformation is typically expressed as shear zones ranging from millimeter to kilometer scales. The multitude of possible factors determining the deformation style in the lithosphere make a comprehensive understanding of the deformation behavior of Earth’s lithosphere challenging. In this session we aim to tackle the complex topic of lithospheric deformation by combining observations from natural rocks with those from experimental and numerical studies.

TS1.3 orals: 16:15–18:00 (CEST) Room G2, on-site posters: 10:45–12:30 (CEST) Hall X2

EGU Exhibition

Don’t miss out the EGU Exhibition where you will get a chance to talk with industry representatives and members of other academic, scientific and publishing organisations. Several of the Exhibitors are running special events throughout the week, check the Exhibition events portal for a range of events.

Today at the Open Science and Data Help Desk lunchtime sessions: Emmanuel Söding on 'Open Science - research association view'.

12:45 – 13:45 (CEST) Booth X208

Opening times of the Exhibition:
Monday, 28 April to Thursday, 1 May 2025: daily from 10:00 to 18:00 (CEST)
Friday, 2 May 2025: 10:00–13:00 (CEST)

List of Exhibitors

Meet EGU - at the EGU Booth in Hall X2

Talk to the volunteers who make EGU happen; from giving out awards and funding, to making decisions about our publications and the General Assembly, come and Meet EGU!

Meet the Topical Events Committee: 10:15–10:45 (CEST)
Meet the EGU Office Staff: 12:30–13:15 (CEST)
Meet the Geodynamics Division team: 12:45–13:30 (CEST)
Meet the Stratigraphy, Sedimentology and Palaeontology Division team: 14:00–15:00 (CEST)
Meet the Geochemistry, Mineralogy, Petrology, and Volcanology Division team: 14:15–15:00 (CEST)
Meet the Natural Hazards Division team: 15:00–16:00 (CEST)
Meet the editors of Ocean Science (Karen Heywood and Mario Hoppema): 15:00-16:00 (CEST)