CL – Climate: Past, Present & Future

Programme Group Chair: Kerstin Treydte

Inter- and transdisciplinary sessions led by CL

Suggested session
AI for Climate Science
Session short summary:
This session explores the latest advancements in artificial intelligence machine learning for climate science. Topics include, but are not limited to: causal inference, hybrid physics-AI models, super-resolution, uncertainty quantification, explainable AI, AI reasoning and agent-based workflows. It explores AI’s potential while addressing its limitations.
Keywords: Artificial Intelligence, Climate extremes, Downscaling, Machine Learning, Model uncertainty
Inter- and Transdisciplinary Sessions suggestion led by: CL | Climate: Past, Present & Future
Co-organization suggestions:
AS | Atmospheric Sciences
NP | Nonlinear Processes in Geosciences
OS | Ocean Sciences
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Session short summary:
Our session establishes an interdisciplinary framework for discussing changes in the Atlantic Meridional Overturning Circulation and their multifaceted impacts, spanning climatic, biogeochemical, and socioeconomic implications.
Keywords: Atmosphere-ocean interaction, Climate change - modelling, Climate change - ocean, Climate change - societal impact, Ocean circulation
Inter- and Transdisciplinary Sessions suggestion led by: CL | Climate: Past, Present & Future
Co-organization suggestions:
AS | Atmospheric Sciences
OS | Ocean Sciences
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Session short summary:
This session examines how climate change and extreme weather affect human health, especially among vulnerable and marginalised populations. It welcomes research on observed and future risks, climate attribution, early-warning systems, equitable adaptation and public health preparedness.
Keywords: Climate change - adaptation, Climate change - societal impact, Human health
Inter- and Transdisciplinary Sessions suggestion led by: CL | Climate: Past, Present & Future
Co-organization suggestions:
NH | Natural Hazards
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Session short summary:
This session explores the growing impacts of climate and environmental change on human health. It welcomes interdisciplinary studies assessing climate-sensitive exposures and health risks, integrating diverse data sources, modelling impacts across scales, developing risk maps, and evaluating adaptation strategies for climate-resilient and equitable public health.
Keywords: Air pollution, Climate change - adaptation, Climate change - societal impact, Climate extremes, Human health
Inter- and Transdisciplinary Sessions suggestion led by: CL | Climate: Past, Present & Future
Co-organization suggestions:
NH | Natural Hazards
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Session short summary:
Decision-makers must consider extreme weather when evaluating, disclosing, and responding to complex climate risks. We examine how interdisciplinary teams across academic, industry, and government sectors are working to understand extreme weather events and their changes in a warming climate.
Keywords: Climate change - adaptation, Climate change - mitigation, Climate change - societal impact, Resilience, Weather extreme events
Inter- and Transdisciplinary Sessions suggestion led by: CL | Climate: Past, Present & Future
Co-organization suggestions:
NH | Natural Hazards
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Session short summary:
How do conclusions about climate risk and adaptation change when who is exposed, who can adapt, and who bears residual or transferred risk are made explicit? We invite quantitative, data-driven contributions that operationalise inequality and justice across the assessment chain, from differentiated exposure and adaptive capacity to distributional appraisal, maladaptation and adaptation limits.
Keywords: Climate change - adaptation, Climate change - societal impact, Multi-risk (management, assessments, models), Risk/hazard Assessment (identification, Analysis and Evaluation) , Vulnerability/damage assessment
Inter- and Transdisciplinary Sessions suggestion led by: CL | Climate: Past, Present & Future
Co-organization suggestions:
ERE | Energy, Resources and the Environment
NH | Natural Hazards
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Disciplinary sessions of CL

CL0 –  Inter- and Transdisciplinary Sessions

Sub-Programme Group Scientific Officer: Kerstin Treydte

Proposals are marked in red.

Session short summary:
We invite research on past, present and future environmental change in Northeast Greenland, extending from eastern North Greenland to northern East Greenland. We welcome marine, cryospheric, terrestrial and atmospheric studies across timescales, including landscape and ice-sheet evolution, ocean circulation, palaeoclimate, modern processes and responses to future warming.
Keywords: Climate change - modelling, Greenland, Ice sheets, Palaeo-oceanography (Paleo-oceanography), Paleoclimate - reconstructions
Co-organization suggestions:
BG5 | Palaeobiogeosciences
CR2 | lce sheets, ice shelves and glaciers
GM9 | Glacial, Periglacial, and Cold Regions Geomorphology
OS1 | Ocean Circulation and Climate
[Suggest a new title and/or description]
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CL1.1 –  Past Climate - Deep Time

Sub-Programme Group Scientific Officers: Jan-Berend Stuut, Elisabeth Dietze

CL1.2 –  Past Climate - Last ~2.6 Ma

Sub-Programme Group Scientific Officers: Jan-Berend Stuut, Carole Nehme

CL2 –  Present Climate – Historical and Direct Observations

Sub-Programme Group Scientific Officers: Martin Wild, Kerstin Treydte

Proposals are marked in red.

Session short summary:
This session highlights high-quality in-situ, satellite, and reanalyses data in climate research. It focuses on quality control, harmonization, and homogenization of observations. Key topics include data assimilation, physical retrievals, and AI/ML techniques. Ultimately, the session evaluates the impact of these data on ECVs, climate services, and extreme event attribution.
Keywords: Climate extremes, Data assimilation, Machine Learning, Satellite time series, Synoptic climatology (Climate observations)
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Session short summary:
Attribution research in the context of climate change investigates the extent to which human influence contributes to changes and events in the climate system and their impacts. This session welcomes contribution from detection and attribution of large scale trends, to attribution of extreme events and impacts on human and natural systems.
Keywords: Climate change - anthropogenic, Climate change - societal impact, Climate extremes
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Session short summary:
Climate change is reshaping European ecosystems. Plant regeneration is therefore emerging as a key process but remains poorly understood. By compiling observations on numerous species, regeneration stages, and sites, this session aims to deepen our understanding of the regeneration process, as well as the implications of ongoing changes on the composition and resilience of European ecosystems.
Keywords: Climate change - adaptation, Ecological adaptation, Ecophysiology, Forests, Resilience
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Session short summary:
This session covers all aspects of radiation in the climate system, from local to global scales, considering observational, data-driven and modelling approaches
Keywords: Anthropogenic forcing, Atmospheric aerosols, Cloud and radiation interaction, Radiation budget, Surface energy balance
Co-organization suggestions:
AS3 | Atmospheric Composition, Chemistry and Aerosols
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Session short summary:
Climate-driven drought and extremes challenge forest resilience across biological, spatial and temporal scales. This session explores how stress responses propagate across scales from tree physiology and growth to forest dynamics, asking when cross-scale inference succeeds and where mismatches limit our understanding of forest resilience.
Keywords: Climate change - adaptation, Ecological adaptation, Ecophysiology, Forests, Isotopes
Co-organization suggestions:
BG1 | General Biogeosciences
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CL3.1 –  Future Climate – Climate Change: From Regional to Global

Sub-Programme Group Scientific Officers: Janina J. Nett, Gabriele Messori

CL3.2 –  Future Climate – Climate and Society

Sub-Programme Group Scientific Officers: Kerstin Treydte, Janina J. Nett

Proposals are marked in red.

Session short summary:
Explosive volcanic eruptions can cause widespread disruptions beyond their immediate region. Studying past eruptions helps assess impacts, improve climate models, and estimate eruption frequency. This session welcomes submissions that seek to improve reconstructions of past eruptions, elucidate climate system responses, and assess their implications for society.
Keywords: Climate change - societal impact, Climate extremes, Volcanic aerosols, Volcanic hazard (Volcanic risk)
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Session short summary:
This session gathers the researchers interested in the development of climate services and provides a good room to share experiences and results from the recent regional activities, European initiatives and international experiences focused on the production of climate information
Keywords: Big data - visualisation, Climate change - societal impact, Climate extremes, Climate prediction, Science communication - social media
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CL4 –  Climate Studies Across Timescales

Sub-Programme Group Scientific Officers: Carole Nehme, Elisabeth Dietze

Proposals are marked in red.

Session short summary:
Session focusing on astronomical (Milankovitch ; orbital) forcing and Earth system transitions: orbital forcing, climate response across different climate states, major climate events, and millennial variability from the Precambrian to the present.
Keywords: Earth system modelling, Palaeo-oceanography (Paleo-oceanography), Sediments (Sedimentation / Deposition)
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Session short summary:
This session covers seasonal to multi-decadal climate predictions and their applications. It focusses on the understanding of predictability and limitations of the predictions. Discussed are methods to improve forecast skill and creating useful results for applications and climate services.
Keywords: Climate prediction, Climate system dynamics, Ensemble forecasting, Machine Learning, Predictability
Co-organization suggestions:
AS1 | Meteorology
ESSI4 | Advanced Technologies and Informatics Enabling Transdisciplinary Science
HS4 | Hydrological forecasting
NP5 | Predictability
OS1 | Ocean Circulation and Climate
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Session short summary:
The Arctic is experiencing some of the most rapid environmental changes on Earth, requiring an integrated perspective on its processes and their broader climatic impacts. This session aims to bring together research on the Arctic under warm climate conditions, and enhance interdisciplinary exchange and discussion on the mechanisms, impacts, and interconnections across past, present, and future.
Keywords: Arctic, Climate system dynamics, Palaeo-oceanography (Paleo-oceanography), Teleconnections
Co-organization suggestions:
CR1 | The State of the Cryosphere: Past, Present, Future
OS1 | Ocean Circulation and Climate
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Session short summary:
This session invites research from the international sea level community that advances knowledge of past, present, and future changes in global and regional sea levels, extreme events, and coastal impacts.
Keywords: Climate change - ocean, Extreme sea waves, Ice sheets, Melting of glaciers and ice sheets, Sea level
Co-organization suggestions:
CR | Cryospheric Sciences
OS | Ocean Sciences
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Session short summary:
This session encompasses all time periods of the Paleoclimate Model Intercomparison Project and explore how they link with wider CMIP efforts including future projections. It is also open to other paleoclimate modelling contributions, extending to benchmarking and model-data comparison.
Keywords: Palaeo-oceanography (Paleo-oceanography), Palaeoclimate modelling (paleoclimate modeling)
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Session short summary:
Land–atmosphere interactions often play a decisive role in shaping climate extremes. We welcome studies using field measurements, remote sensing observations, theory and modelling to analyse this interplay under past, present and/or future climates and at scales ranging from local to global but with emphasis on larger scales.
Keywords: Climate extremes, Drought, Land-atmosphere interactions, Weather extreme events, vegetation processes
Co-organization suggestions:
AS2 | Boundary Layer Processes
BG9 | Earth System Remote Sensing and Modelling
HS7 | Precipitation and climate
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Session short summary:
This session brings together chemistry-climate, Earth system, and solar-terrestrial modelling studies on energetic particle precipitation, solar variability, geomagnetic field changes and their atmospheric impacts, from individual events to long-term Earth history.
Keywords: Atmospheric chemistry, Atmospheric composition, Earth system modelling, Earth's magnetic field, Space weather
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Session short summary:
This session focuses on studies targeting a better understanding of Earth’s climate sensitivity. It explores sources of uncertainty arising due to forcing and radiative feedbacks, influenced by processes ranging from cloud microphysics to large-scale atmospheric circulation and the spatial pattern of surface temperature changes.
Keywords: Climate change - modelling, Climate prediction, Climate system dynamics, Cloud and radiation interaction, Radiation budget
Co-organization suggestions:
AS1 | Meteorology
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Session short summary:
Exploring the large-scale atmospheric circulation and its ongoing changes are key for understanding and anticipating future climate impacts and regional climate extremes. Our session invites contributions on questions concerning the dynamics, variability, drivers, and complex interactions of the large-scale atmospheric circulation.
Keywords: Climate change - anthropogenic, Climate change - modelling, Climate system dynamics
Co-organization suggestions:
AS | Atmospheric Sciences
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Session short summary:
Shallow cores, ocean drilling and geophysical records offer complementary windows into Arctic climate evolution, from the Holocene to millions of years. This session integrates sedimentology, stratigraphy, geophysics, micropaleontology, paleomagnetism, geochemistry and ancient DNA to reconstruct Arctic paleoclimate, oceanography and ice-sheet dynamics, informing Earth System Models.
Keywords: Arctic, Ocean circulation, Palaeo-oceanography (Paleo-oceanography), Palaeoenvironment (paleoenvironment), Sediment transport
Co-organization suggestions:
SSP2 | Stratigraphy, Earth Systems History and Climate Geology
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CL5 –  Tools for Climate Studies

Sub-Programme Group Scientific Officers: Elisabeth Dietze, Ola Kwiecien

Proposals are marked in red.

Session short summary:
This session explores how AI and machine learning are reshaping weather and climate forecasting, from data-driven and generative models to hybrid AI-physics approaches, across short-range to seasonal timescales. Focuses on extreme events (detection, anticipation, impacts) and on trust/generalization in AI-based forecasting. Aims to foster collaboration among AI, meteorology, and climate experts.
Keywords: Artificial Intelligence, Climate extremes, Machine Learning, Risk/hazard scenarios modeling and forecasting, Weather prediction (Weather forecasting)
Co-organization suggestions:
AS | Atmospheric Sciences
NH | Natural Hazards
[Suggest a new title and/or description]
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CL6 –  Short Courses

Sub-Programme Group Scientific Officer: Kerstin Treydte