Fabien Arnaud is a research director at the CNRS, assigned to the EDYTEM laboratory (Environnement DYnamique et TErritoire de la Montagne). He is working to reconstruct the past climate and environment from sediment cores collected mainly from lakes. In order to understand past variations, he uses sedimentological, geochemical and geochronological methods. He has been the director of the EDYTEM laboratory since 2015 and has published more than 70 scientific articles on climate and past environments in peer-reviewed journals. Since 2012, he has been the scientific coordinator of the "continent" component of the future-oriented investment project "Equipex CLIMCOR", which aims to strengthen national capacity in terms of scientific coring.