C2N carbon footprint: from footprint assessment to actions for its reduction.

Abstract:

The C2N carbon footprint, consolidated on the basis of 2022 data and anticipated from 2023 and 2024 data, was established between March and July 2025. This work provided an opportunity to extract the carbon footprint of the C2N technology centre, analyse the main items in the laboratory's carbon footprint, and finally assess the theoretical effect of reduction scenarios [1]. The involved team also looked at the general statistics on the carbon footprint of CNRS-Physics laboratories and at concrete actions implemented in other laboratories.

This general seminar will be split in 2 parts:  In the first part the main results of the C2N carbon footprint calculation will be reviewed, then analysed in more detail for the main items. Possible quantitative avenues for reducing the footprint will be presented for each item. It will provide the opportunity to summarise the 2025 resource and energy-savings actions and their impacts.  In the second part, a discussion with all participants will be held to identify the main actions on which there is consensus, aiming at proposing their concrete implementation by mid-2026.

[1] Jules Becquemont, Antoine Darret. 2022 Carbon Footprint Assessment of C2N and its Micro-Nanotechnoloy Facility – methodology, implementation, analysis and reduction strategies. CNRS; Université Paris-Saclay; Université Paris Cité. 2025. ⟨hal-05203071⟩

This seminar will be presented by the sustainable-development advisors and the carbon-footprint team in 2025: Amanda Trepagny, Anne Talneau, Antonella Cavanna, Aristide Lemaître, Daniele Melati, Elodie Colin, Federico Panciera, Guillemin Rodary, Jean-Michel Manceau, Marine André, Martina Morassi, Nadia Belabas, Nathalie Bardou, Sophie Bouchoule and Stefano Pirotta

This seminar will be the last in the 2025 ‘Sustainable Development’ mini-cycle of seminars organised by the with the C2N seminar team.

Participation to the seminar is validated as part of a doctoral module by the EOBE and EDOM doctoral schools.

The slides will be in English, and the presentation will be in French.