International Symposium • 20 May 2025

Cities and Climate Change

How to build cities resilient to the impacts of climate change as well as mitigating emissions?

Cities and climate change will be at the heart of the international conference for the 22nd edition of the International Weather and Climate Forum. This day dedicated to professionals will outline the urban landscapes, present and yet to be built, and their transformations linked to climate change whether to adapt to its impacts or to limit global warming.
Climate change is overturning global urban dynamics, with major impacts on people’s lives. This day will focus on the expected impacts, particularly in terms of heat islands and flooding, and the possibilities for adaptation, as well as the potential for cities to reduce emissions of greenhouse gases. Four thematic sessions comprising presentations and round tables will cover strategies considered, economic aspects, actions currently being implemented and social inequality issues, providing a comprehensive picture of current and future transformations in urban areas.

25_FIM_COLLOQUE_partenaires

Program

Replays & Presentations

Subscribers list

Participants booklet

Photos

The essential

Tuesday 20 May

Great Witness

Bart VAN DEN HURK 
Scientific Director at Deltares (Netherlands) and IPCC WG2 co-chairt

 2 min

9:00 – Official Opening
Anne HIDALGO Mayor of Paris and Jean JOUZEL Climatologist, President of Météo et Climat and former member of the IPCC

9:15 – Great Witness
Bart VAN DEN HURK Scientific Director at Deltares (Netherlands) and IPCC WG2 co-chair

Session 1 – Strategies overview

The buzzing activity of cities offers great potential for reducing greenhouse gas emissions. But it is also crucial to plan adaptation strategies to react effectively to climate change impacts, avoiding maladaptation. While mitigation strategies are generally well known, adaptation strategies have only more recently been addressed and are subject to experimentations that must absolutely be shared.

9:45 – Keynote 1
Diane SIMIU Director of Climate, Energy Efficiency and Air at the Ministry of Ecological Transition, Biodiversity, Forestry, Sea and Fisheries – DGEC (tbc)
Valéry MASSON Researcher at the Centre National de Recherches Meteorologiques (Météo-France & CNRS)

10:15 – Round Table 1
Bertrand DELIGNON Director, Property & Casualty, MACIF
Catherine HALBWACHS
Head of the ADAPT – CSR Division, Nuclear Thermal Division, EDF Nuclear and Thermal Generation Group
David MARCHAL Executive Director, Expertise and Programs, ADEME
Jean Michel SOUBEYROUX Deputy Scientific Director for Climatology, Météo-France

11:15 – Break

Session 2 – Leveraging finance

Adaptation has a cost, and so do the impacts of climate change. The question of funding is central to the implementation of concrete actions, but it can be compared in a very practical way to the cost of inaction. Maintaining room for manoeuvre and a robust insurance system is necessary, and reinsurers, protecting insurers against the abnormal frequency or intensity of claims, play a decisive role.

11:30 – Keynote 2
Vincent VIGUIÉ Economist on the evaluation of policies for adapting cities to the impacts of climate change at CIRED (Centre International de Recherche sur l’Environnement et le Développement)

12:00 – Round Table 2

Blaise BOURGEOIS Member of the Executive Committee of Generali France, Chief Insurance Officer
Anne ÉPAULARD Director – Economy and Environment Department, OFCE
Laurence ROUX Territorial Engineering Department Manager at Banque des Territoires (Caisse des Dépôts Group)
Florence URCHETTI
Regional Manager Paris, ENEDIS

13:00 – 14:30 – Lunch-Break

Session 3 – Experiences sharing

Implementing effective and successful adaptation strategies cannot be improvised. It requires in-depth reflection, particularly at the level of sectoral and urban planning policies. At the local level, it raises questions about the regulatory framework and governance requiring constant questioning and re-evaluation of decisions. To navigate this labyrinth, sharing experiences is key.

14:30 – Keynote 3
Hélène CHARTIER C40 Planning Director

15:00 – Round Table 3
Élodie BRICHE R&D coordinator for sustainable urban planning and intrapreneur of the “Plus fraîche ma ville” initiative ADEME
Lamia EL AARAJE Deputy Mayor of Paris in charge of urban planning
Alexis GOLDBERG Sales Director France RCU/RFU – ENGIE SOLUTIONS
Bertrand RIGAL Director of Ecological Transition, Greater Reims
Bart VAN DEN HURK Scientific Director at Deltares (Netherlands) and IPCC WG2 co-chair

Session 4 – Reducing social inequalities sociales

We are not all equal when it comes to the impacts of climate change, as risks differ relative to socio-demographic or spatial reasons. This session will provide feedback on how different local authorities understand these issues and the tools and approaches they use to assess vulnerable populations to guide socially just solutions.

16:00 – Keynote 4
François GEMENNE Professor at HEC Paris, specialist in the geopolitics of the environment and migration

16:30 – Round Table 4
Pierre ANDRÉ FNRS researcher at the Hoover Chair of Economic and Social Ethics at UCLouvain (Belgium)
Annabelle FERRY Director of the Territoires et ville department at CEREMA
Kévin JEAN Epidemiologist, Junior Professor at Ecole Normale Supérieure-PSL Paris
Dan LERT Deputy Mayor of Paris in charge of the ecological transition, the climate plan, water and energy

17:30 – Closing
Valérie MASSON-DELMOTTE Director of CEA research at the LSCE, co-chair of IPCC Group 1 from 2015 to 2023, and member of the Haut Conseil pour le Climat

President
Valéry MASSON researcher at the Centre National de Recherches Meteorologiques (Météo-France & CNRS)

Members
Jérémie ALMOSNI director of Cities and Sustainable Territories, ADEME
Geneviève BRETAGNE director of Partnerships and ecological transition expert, AUAT
Pauline LAVAUD director of ecological transition and climate at the City of Paris
Isabelle COLL professor at the University of Paris Est Créteil and researcher at the inter-university laboratory of atmospheric systems (Lisa)
Guillaume DOLQUES researcher on adaptation to climate change at I4CE – Institut for Climate Economy
Noémie LEPRINCE-RINGUET operations manager of the IPCC Working Group II technical support unit
Eric BRUN secretary general of météo et climat and Onerc’s former secretary general

The essential

Tuesday 20 May

The speakers

Anne HIDALGO

Mayor of Paris

Jean JOUZEL

President of Météo et Climat

Valérie MASSON-DELMOTTE

CEA, LSCE-IPSL

Bart VAN DEN HURK

Deltares & IPCC (NL)

Valéry MASSON

Météo-France & CNRS

David MARCHAL

ADEME

Bertrand DELIGNON

MACIF

Vincent VIGUIÉ

CIRED

Anne ÉPAULARD

OFCE

Élodie BRICHE

ADEME

Alexis GOLDBERG

Engie Solutions France

François GEMENNE

HEC Paris

Pierre ANDRE

University of Louvain

Annabelle FERRY

CEREMA

Laurence ROUX

Banque des Territoires

Dan LERT

Paris City All

Lamia EL AARAJE

Paris City All

Blaise BOURGEOIS

Generali France

Hélène CHARTIER

C40 Cities

Bertrand RIGAL

Grand REIMS

Kévin JEAN

Ecole Normale Supérieure-PSL

Florence URCHETTI

ENEDIS

Jean Michel SOUBEYROUX

Météo-France

Diane SIMIU

MTE / DGEC