Tribute to Ghislain de Marsily | L'eau en tension, l'eau en partage

This scientific session is dedicated to Ghislain de Marsily, member of the French Academy of Sciences and Academy of Agriculture. An internationally-renowned figure in the field of hydrogeology, and an excellent teacher with a commitment to youth, he has trained a whole community of researchers in water science and management, bringing his expertise to bear on socially-vital issues in this field.

Climate change is inducing increased tensions on water resources. In some regions of the world, the viability of the land is being called into question, with perceptible consequences for agriculture and food, human health, aquatic ecosystems... Transformations in land use, agriculture and water management systems are underway, and are often questioned by society in terms of their scope, temporality and decision-making methods. These transformations call for greater cooperation between water users, a more transparent sharing of more limited, better managed resources.

This session will review the broad spectrum of scientific issues related to water: state of resources, means of investigation, effects of climate change, governance of resources.

PROGRAMME

14:30-14:45 Introductions

Françoise COMBES, President of the Academy of Sciences

Chantal GASCUEL, secrétaire perpétuelle de l'Académie d'agriculture de France

Anny CAZENAVE, member of the Académie des sciences, Sciences de l'univers section

Diffusion of an excerpt from an Académie des sciences archive film.

14:45-15:25 Resources, modeling them, observing them

⇒ About validity, utility and confidence in hydrogeological models.

Philippe DAVY, research director at the CNRS, Géosciences Rennes laboratory (CNRS/Université de Rennes), Observatoire des sciences de l'environnement de Rennes (OSEren).

⇒ Space at the service of hydrology research, 30 years of innovation: spearheaded by France and Europe.

Jean-François CRETAUX, Cnes researcher, deputy director of the Laboratoire d'études en géophysique et océanographie spatiales (Legos, Cnes/CNRS/IRD/Université de Toulouse).

3:25-4:05pm Aquatic resources and ecosystems under stress, climate change

⇒ Water, an endangered treasure, to be shared more than ever.

Agnès DUCHARNE, corresponding member of the French Academy of Agriculture, research director at CNRS, director of the laboratory Milieux environnementaux, transferts et interactions dans les hydrosystèmes et les sols (Metis, CNRS/EPHE-PSL/Sorbonne University).

⇒ Ecosystem impacts: ecology, ecotoxicology

Jeanne GARRIC, corresponding member of the French Academy of Agriculture, research director at Inrae.

Yves SOUCHON, corresponding member of the Académie d'agriculture de France, research director emeritus at Inrae, Laboratoire d'hydroécologie quantitative de Lyon.

16:05-16:45 Rising vulnerabilities, questioning governances

⇒ Global demographics and drinking water needs.

Henri LERIDON, corresponding member of the Academy of Sciences in the section of Human Biology and Medical Sciences, director of emeritus research at the Institut national d'études démographiques (Ined).

⇒ The major determinants of water governance

Gabrielle BOULEAU, member of the French Academy of Agriculture, researcher at Inrae and director of PIREN-Seine.

16:45-17:00 Conclusion

Érik ORSENNA, member of the Académie française

--> Download the program

--> Register