This report was developed by the OECD Environment Directorate directed by Jo Tyndall, under the supervision of Walid Oueslati, Head of the Climate, Water and Biodiversity Division at the OECD Environment Directorate.
It was authored by Sophie Lavaud under the guidance of Catherine Gamper, Team Lead Climate Change Adaptation and Resilience of the OECD. Simon Touboul carried out and drafted the section on the economic analysis. The report benefitted from valuable research assistance provided by Anaïs Rault and Jiyul Shin from the OECD Environment Directorate.
The authors are indebted to officials from the EPTB Seine Grands Lacs basin organisation (Emmanuelle Lucas, Charlotte Barbé and Philippe Riboust), the Greater Paris Metropolis (Claire Beyeler, Bertille Puidebat and Marie Berdoulay) and the City of Paris (Pierre Musseau, Agathe Cohen, Noémie Fompeyrine, Marie-Pierre Padovani, Bruno Gouyette) for the invaluable and continuous guidance and coordination support offered throughout this policy dialogue. The authors would like to thank officials from the Ministries of environment, agriculture, finance, interior at national and regional level, the French agency for the ecological transition (ADEME), the national forestry agency (ONF) and national biodiversity agency (OFB), the Seine-Normandy water agency, the regional water syndicate SEDIF, Eau de Paris, Aquavesc but also Suez and Veolia, the french waterways operators “Voies Navigables de France”, Haropa Ports Paris, the french energy producer (EDF) and distributor (RTE) but also Fraîcheur de Paris and the CPCU in charge of cooling and heating networks, Syctom (waste-to-energy production), the regional, departmental and municipal governments of the Paris Metropolitan area, the Institut Paris Region and the Parisian urban planning agency (APUR), the regional chambers of industry and agriculture, the Aqui’Brie association as well as France Nature Environnement and PIREN Seine, but also researchers from BRGM, Météo France or INRAE for sharing their expertise and invaluable information for the development of this report. Finally, the economic study benefitted from the expertise of the French economic laboratory, the CIRED.
The authors are thankful for the feedback received from the following OECD colleagues on earlier versions of the report: Xavier Leflaive, Mikaela Rambali, Delia Sanchez Trancon, Sophie Tremolet and Oriana Romano. The authors would also like to thank international peers who contributed to the policy dialogue, notably Daniel Bicknell, Climate Adaptation Manager at the Greater London Authority, Hans Gherels, Global lead on urban resilience at Deltares Institute and Maria José Chesa Maria, Head of Environmental Service and External Relations, at Barcelona City Hall.
Finally the authors thank Charlotte Raoult, Camilo Jimenez, Sora Choi, Sama Al Taher Cucci, Beth Del Bourgo, William Foster, and Catherine Bremer who provided invaluable administrative and communications support.
Financial support from the City of Paris, the Greater Paris Metropolis and the EPTB Seine Grands Lacs for the development of this report is greatly appreciated.