By 2026, sustainable development is becoming an operational requirement for organizations, faced with the need to combine profitability, responsibility, and resilience in the face of environmental and societal upheavals. Whether it’s about guiding strategies, mobilizing teams, or meeting the growing expectations of stakeholders, having concrete and nuanced insights is now essential. To support both reflection and action on these issues, we have selected five speakers who can offer valuable expertise and real-world feedback. Discover their vision and the keys they propose to turn commitments into tangible results.
| Last Name / First Name | Profile | Conference |
|---|---|---|
 Arthur Keller Français | Specialist in climate change and the rapid erosion of biodiversity, in prolonged disruptions of critical supply chains, in food insecurity | HOW DO YOU IMAGINE THE FUTURE? |
 Nicolas Imbert Français | Rethink the planet, help provide concrete solutions to climate, environmental, health, economic, and social emergencies. | Building global resilience in response to climate disruption |
 Dimitri Carbonnelle Français | TEDx Speaker · Energy, Climate, Adaptation, AI Speaker · Author · Spokesperson Les Shifters / The Shift Project | Energy challenges: decarbonization, electrification, and resilience |
 Matthieu Witvoet Français | Eco-adventurer – Bring your CSR to life with an adventure | CSR: a world tour of solutions |
 John Crowley Français | Understanding the challenges of the ecological transition and the practical tools to achieve it | Measuring the invisible to achieve the ecological transition |
Our speakers on the topic
Arthur Keller
Engineer and systems thinker, Arthur Keller has established himself as a leading authority on resilience strategies in the face of crises and organizational transformation. Sought after by public institutions, called to testify at the National Assembly, and a speaker at top schools, he supports regions and decision-makers in anticipating vulnerabilities and strengthening their capacity for action. His approach, combining analytical rigor and creativity, sheds light on the challenges of ecological transition and inspires concrete pathways in response to contemporary issues.
Talk: HOW DO YOU ENVISION THE FUTURE? Discover how our visions of the future profoundly influence our collective and individual choices—often at the expense of reality. Arthur Keller invites you to explore the four major future imaginaries—limitless, sustainability-focused, mitigationist, and degrowth—to understand their limitations and identify relevant courses of action in the face of the challenges ahead. Leave with tools to discern and choose directions suited to our times.
Themes: avenir, climat, biodiversite, changement-climatique
Nicolas Imbert
An engineer graduated from Centrale Lyon and the University of Southampton, Nicolas Imbert has spent over twenty years supporting businesses, local communities, and civil society in facing climate, environmental, and social challenges. His career combines strategic consulting, association leadership, and involvement in concrete projects related to water, food, the circular economy, and territorial resilience. As a committed author, he sheds light on pathways for transformation toward a livable planet, directly connected to the challenges of sustainable development.
Talk: Building Global Resilience in Response to Climate Disruption In the face of climate upheaval and multiple crises, this talk explores how to build global resilience, drawing on concrete examples and innovative action levers. Participants will discover how to combine economic, ecological, and societal performance, and will leave with practical tools to sustainably transform their organizations and ways of working.
Topics: territoire, environnement, resilience, developpement-de-business, entrepreneuriat, leadership, innovation, management, economie, urgence-ecologique, transition-ecologique, biomimetisme
Dimitri Carbonnelle
Dimitri Carbonnelle is one of the most committed French voices on climate and energy issues. Founder of Livosphere, he supports leaders and organizations in their transformation towards decarbonization and adaptation to climate change. As spokesperson for the Shifters, he knows how to make complex topics accessible and mobilize people around concrete solutions. His approach sheds light for companies wishing to embark on a low-carbon and resilient path.
Talk: Energy Challenges: Decarbonization, Electrification, and Resilience At a time when the surge in energy demand is disrupting our balance, Dimitri Carbonnelle unpacks the major challenges of decarbonization, electrification, and the resilience of networks. Participants will discover the stakes of the future energy mix, the risks related to resources and infrastructure, as well as concrete solutions to accelerate the transition toward a leaner, safer, and more innovative electric system.
Topics: transition-energetique, climat, changement-climatique, dereglement-climatique, environnement, rse, robustesse, resilience, avenir, prospective, intelligence-artificielle, transformation-digitale, innovation
Matthieu Witvoet
Matthieu Witvoet cycled around the world to discover local initiatives tackling plastic pollution—a 17,000-kilometer adventure covered by numerous media outlets. Since then, he has shared his findings through over 300 talks and collaborations with companies focused on the circular economy. Always driven by a taste for challenge, he multiplies impactful expeditions, such as swimming across Lake Titicaca or collecting cigarette butts. His approach invites us to explore, through hands-on experience, concrete solutions in service of the planet.
Talk: CSR: A World Tour of Solutions
Set off on an inspiring world tour with Matthieu Witvoet, who will show you how to reconcile economy, environment, and society through concrete initiatives and forward-thinking innovations. Thanks to his unique story of cycling across the globe, you’ll discover sustainable solutions, international success stories, and actionable levers you can apply in your own field. Leave with the keys to transform your practices and take effective action for social responsibility.
Themes: voyage, environnement, innovation, economie-circulaire
John Crowley
President of Groupe PHGD, John Crowley supports companies and regions in their environmental and social transformations, drawing on extensive experience gained at UNESCO, where he led the Research, Policy and Foresight Section. A recognized author and speaker, he sheds light on the links between understanding the world and taking concrete action, especially in the face of ecological transition challenges. His integrated approach, fueled by both scientific and nonprofit engagement, offers keys to thinking about and measuring the invisible in service of change.
Talk: Measuring the Invisible to Succeed in the Ecological Transition In this talk, John Crowley will highlight the importance of measuring what often remains invisible in our economic models: natural capital. Participants will discover practical tools to assess the real costs and benefits of the ecological transition, while integrating the ethical and legal dimensions essential for a successful transformation of our societies.
Topics: transformation, value, environment, energy-transition