ESM2025: Earth System Models for the future

ESM2025, an ambitious European project on Earth System Modelling, coordinated by Météo France-CNRM, is now official. The project started on 1 June 2021 and is funded with 11 Mio € from the European Commission's H2020 programme. ESM2025 relies on an international team of 19 European institutes (from seven European countries: Austria, Belgium, France, Germany, Norway, Sweden, Switzerland and the UK) and an Australian university.

Dr Tatiana Ilyina from the department “The Ocean in the Earth System” at the Max Planck Institute for Meteorology (MPI-M) and Dr Chris Jones from the MetOffice Hadley Center, UK, lead the core theme “Enabling and exploring new couplings between Earth system components”. Prof. Victor Brovkin’s group at MPI-M, as well as groups from MPG partner institutes, MPI for Biogeochemistry in Jena and MPI for Chemistry in Mainz, will contribute with development of novel physical and biogeochemical components of ICON-ESM.

The project aims to develop the next generation of Earth System Models (ESMs). This will take a step forward in providing relevant climate simulations for the development of ambitious and realistic mitigation and adaptation strategies in line with the Paris Agreement.

More specifically, ESM2025 aims to develop this new generation of ESMs by:

  • the integration of new components in the ESMs;
  • the representation of interactions and couplings between the components within the     ESMs;
  • the improvement of key climate processes through the use of machine     learning/artificial intelligence or the use of constraints derived from available observations.

ESM2025 will also improve the consistency between ESMs and Integrated Assessment Models (IAMs) and thus better represent the full Earth system response to anthropogenic emissions and treatment of human land use change in the ESMs. In particular, the results of these ESMs will contribute to improve the coherence of climate and mitigation processes in ESMs and IAMs.

The novel generation of ESMs will contribute to the production of an improved set of climate projections that will support European climate services and IPCC assessments, thus helping to better guide public action in the implementation of the Paris Agreement. To this end, ESM2025 aims to co-develop with key stakeholder communities relevant scientific knowledge and guidance for the development of strong policies supporting the societal transformations needed to build a future net-zero carbon and climate resilient society. The project will also provide key information in support of international climate assessment reports, climate change mitigation policy, climate change adaptation and local to national decision-making.

Finally, ESM2025 aims to specifically target the younger generation by developing educational and pedagogical material for young European citizens to increase public understanding and support for the societal transformations needed to achieve the goals of the Paris Agreement.

To achieve all these objectives, the ESM2025 consortium is composed of Earth system scientists and model developers, experts in machine learning for ESM analysis and data-driven hybrid modelling, model evaluation and feedback analysis, as well as specialists in climate education and science-policy dialogue. ESM2025 will also strengthen international collaboration in Earth system modelling by bringing together five ESMs (CNRM, IPSL, MPI-M, NorESM, UKESM) of Europe under one project.


Dr. Tatiana Ilyina
Max Planck Institute for Meteorology
Phone: +49 (0) 40 41173 164
Email: tatiana.ilyina@we dont want

Prof. Dr. Victor Brovkin
Max Planck Institute for Meteorology
Phone: +49 (0) 40 41173 339
Email: victor.brovkin@we dont want

Project Office:

Email : esm2025_project@we dont want

Roland Séférian (Project Coordinator):
Emails : roland.seferian@we dont want and rseferian.cnrm@we dont want
Phone: +33 5 61 07 99 32

Anna Vermunt (Project Manager):
Email : anna.vermunt@we dont want
Phone: +33 5 61 07 90 41

Twitter: @esm2025_eu