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Review of the 2025 European Sustainable Development Week


The European Sustainable Development Week (ESDW) aims to promote the key challenges of sustainable development and to encourage everyone - citizens, local authorities, businesses, and institutions - to take concrete action for a fairer, more resource-efficient, and more inclusive future. The GREENJacob group was strongly mobilised during this event in September-October 2025 to raise awareness among the Institute’s staff about sustainable development.

Published on 10 December 2025

🌟The GREENJacob group was fully engaged in the 2025 ESDW, offering all Institute staff a series of workshops and talks addressing major environmental and societal challenges, and exploring how these issues can be integrated into their activities, whether scientific, technical, or administrative, individual or collective.

🎤 Three thematic conferences on sustainable development, environmental challenges, and waste management brought together between 30 and 50 participants, demonstrating the strong level of interest within the Institute.

Conference by Romain Troublé, CEO of the Tara Ocean Foundation, “The Tara Oceans adventure with the Genoscope”

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Conference by Jean-Luc Guichet, Professor at the University of Picardie, “Contemporary philosophical perspectives on environmental issues”

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Conference by Anne-Sophie Hérard and Coralie Toldo–Quélard, CEA, Presentation of the GREENJacob group and the GreenGARDEN project

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🛠️ The “Décarbon’Action!” workshop, led by Armelle Mesnard, Director of Sustainable Development at the CEA, brought together seven staff members from each of the Institute’s Departments.



This workshop provided an opportunity to discuss the environmental impacts of the Institute’s activities, explore potential decarbonization pathways, and identify priority actions, all through a CEA-designed climate mural. More than simply highlighting the effects of climate change on our work, the workshop also offers realistic solutions that can be implemented within the CEA. GREENJacob’s goal is to offer this workshop regularly within the Institute in order to define an eco-responsible roadmap together with staff members from the various Departments.

Crédit @CEA​




🧩 Finally, seven teams of 5 to 10 participants, including five teams at the Évry site , took part in a CEA- home designed escape game led by the collective.

In this escape game, themed “Eco-actions and waste management,” the mission was to save the CEA (and the planet) from a catastrophe triggered by a major malfunction in the artificial intelligence responsible for waste sorting. Participants particularly enjoyed this activity, which was both fun and educational.

The two fastest teams, one at the Evry site and one at the FAR site, were congratulated for their insight and collective success and were awarded a certificate during the closing ceremony.​

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👏 Remerciements

The success of this event is the result of everyone’s commitment, energy, and enthusiasm. A huge thank you to all those who took part in these activities and to everyone who contributed to their creation and delivery.​

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