Olivier Barriere

I quickly understood that scientific knowledge, no matter how solid, is not enough to change practices. What really changes things is understanding. The conference has become for me a wonderful way to share this knowledge in a simple, lively, and accessible manner, allowing everyone to better understand environmental issues... but also to discover the solutions that already exist.

What excites me is seeing an audience gradually change their perspective throughout a presentation. I love that moment when topics that are sometimes perceived as complex become clearer, when discussions engage, and when participants leave not only better informed but also convinced that they can contribute to change at their level.

My mission is to enable as many people as possible to understand the major environmental challenges in order to promote more informed decisions. I am convinced that the ecological transition can only succeed if it is understood, shared, and collectively supported.

Environmental challenges are immense, but they are not a fatality. Understanding the mechanisms that explain them also means discovering the many solutions that already exist. I hope that everyone leaves with more knowledge, but also with the conviction that every action counts.

No day really looks like another! Between preparing new conferences, scientific monitoring, exchanges with my clients, travel, and field interventions, my daily life is very varied. I also try to set aside time to run, mountain bike, or simply reconnect with nature. It is often there that ideas arise that will shape my upcoming conferences.

Observing nature, understanding the functioning of ecosystems, and exploring the interactions between environment, economy, and society are passions that have accompanied me for a long time. Running and outdoor activities also play an important role in my balance and nourish my perspective on the territories in which I intervene.

Many expect a very technical or anxiety-inducing conference. They ultimately discover a dynamic, accessible, and interactive intervention that prioritizes understanding over guilt. I like to show that it is possible to address environmental issues with scientific rigor... while remaining optimistic and solution-oriented.

I have understood that one does not convince by accumulating numbers, but by giving meaning. This conviction now guides each of my conferences: making science accessible, fostering dialogue, and showing that solutions arise first from a better understanding of the issues.

Having transformed a passion for nature and environmental sciences into a profession that allows me to raise awareness among thousands of people each year. If a conference can change perspectives, raise awareness, or inspire action, then I feel I have contributed, in my own way, to a positive change.

Organizers primarily seek my ability to make complex topics accessible. My conferences are based on solid scientific data, but always prioritize pedagogy, concrete examples, and interactions with the audience. My goal is not to instill fear, but to provide the keys to understanding the issues and discovering the solutions that already exist.

I help organizations understand major environmental issues in order to transform complexity into understanding, and then understanding into action.

I am convinced that ecological transition is not built through guilt or catastrophism. My approach is to explain scientific mechanisms rigorously while highlighting initiatives, innovations, and levers for action that allow us to approach the future with clarity and optimism.

Beyond my work as a speaker, I support companies, communities, and educational institutions in their awareness and ecological transition efforts. These field experiences allow me to illustrate my conferences with concrete examples and adapt them to the realities of each audience.

Pedagogical, dynamic, and interactive. I enjoy transforming complex subjects into accessible conferences, illustrated with concrete examples, so that everyone leaves with a better understanding of the issues... and the desire to act.

My conferences are aimed at companies, communities, institutions, and the general public. They are particularly appreciated by organizations that wish to better understand environmental issues and engage in collective reflection on their adaptation and transition.

My ambition is for everyone to leave with a new perspective on environmental issues. Participants gain a better understanding of the links between climate, water, biodiversity, economy, and society, while discovering concrete action paths adapted to their context. A successful conference, in my opinion, is one that inspires continued reflection long after the intervention has ended.

Yes. I advocate for an approach based on three principles: understand, share, act. Understand the scientific mechanisms, share a common vision of the issues, and identify concrete actions. I am convinced that knowledge is the primary driver of change and that a sustainable transition primarily relies on education.

For several years, I have been working with companies, local authorities, schools, and institutions on major environmental issues. I have had the opportunity to raise awareness among several thousand people through conferences, workshops, and training sessions, always with the same ambition: to make complex subjects accessible and to encourage action.

I work with a wide range of organizations: companies of all sizes, local authorities, public institutions, schools, higher education institutions, associations, and event organizers. This diversity of audiences allows me to tailor each of my interventions to the specific issues of my interlocutors.

Participants regularly highlight the clarity of my explanations, my ability to make complex subjects accessible, as well as the concrete and interactive nature of my conferences. Many also appreciate an approach that raises awareness without inducing guilt and that emphasizes realistic solutions and positive perspectives.

I speak at both public conferences and corporate seminars, colloquia, study days, conventions, institutional events, or professional meetings. My conferences are suitable for groups of about thirty participants as well as auditoriums with several hundred people.

My interventions are particularly relevant for organizations that wish to raise awareness among their teams, engage in collective reflection, or better understand environmental issues in order to anticipate upcoming transformations.

• Certified Carbon Footprint®. • Speaker, consultant, and trainer specialized in environmental and climate issues. • Speaker for companies, local authorities, schools, and institutions. • Design and facilitation of conferences, collaborative workshops, and awareness-raising initiatives tailored to different audiences. • Conferences based on updated scientific data, enriched by ongoing monitoring of climate issues, water, biodiversity, and transitions.

Dynamic, accessible, and authentic. I like to create a closeness with the audience and establish an environment conducive to exchanges. My goal is for everyone to feel involved in the topic, regardless of their level of knowledge.

My conferences alternate between scientific contributions, concrete examples, field anecdotes, and interactions with the audience. I place great importance on exchanges to make each intervention lively, participative, and tailored to the audience's expectations.

Yes. I use many photographs, illustrations, and examples from real situations to facilitate understanding. I also enjoy sharing real-life experiences from the field when they help to concretely illustrate a phenomenon or make a topic more relatable.

My interventions are primarily inspiring lectures based on solid scientific knowledge. They follow a precise structure while allowing for significant exchanges with the audience. Depending on the event's objectives, they can be complemented by participatory workshops that promote the appropriation of the topics discussed.

Yes. Each conference is tailored to the context, challenges, and audience of the organization inviting me. Examples, case studies, and certain content are selected to resonate with the specific issues of each sector or territory.

Participants often remember the simplicity with which complex topics become understandable. They leave with a clearer vision of the stakes, but also with concrete examples and solutions that make the ecological transition more accessible and less anxiety-inducing.

The most memorable moments are often those when participants discover the connections between phenomena they thought were independent: climate, water, biodiversity, economy, or health. Understanding these interconnections allows for a new perspective on environmental challenges and a better grasp of why they concern each of us.

I would like everyone to leave with more curiosity than worry. My conferences are not meant to instill fear, but to provide keys to understanding and to show that solutions exist. If participants leave the room having learned something, with the desire to talk about it with others or to act on their own scale, then the conference has fully fulfilled its role.

Participants leave with a clearer understanding of the major environmental issues and the connections that unite climate, water, biodiversity, economy, and society. They discover that these challenges are not isolated problems, but directly concern their territory, their organization, and their daily lives.

A conference does not transform an organization in an hour, but it can sustainably change a way of seeing things. Participants leave with keys to understanding, inspiring examples, and concrete action paths that they can adapt to their context, whether in their professional activity or personally.

Part of my conferences consists of deconstructing preconceived ideas and false information circulating about climate change and environmental issues. I show how to distinguish scientific facts from beliefs, shortcuts, or simplistic discourses. Participants discover that a better understanding allows them to move beyond oppositions, exercise their critical thinking, and approach these topics with more nuance.

I illustrate each of my conferences with examples from current events, scientific research, and situations observed in the field. The impacts of climate change on territories, tensions around water resources, pollution, and initiatives implemented by communities and businesses help to ground the topics in reality.

I would like to evolve the idea that the environment is an anxiety-inducing topic or one reserved for specialists. Understanding environmental issues is primarily about better understanding the world we live in. And this understanding is the first step towards more informed decisions and more effective actions.

The moment when participants realize that the phenomena they hear about daily — droughts, floods, loss of biodiversity, water tensions, or pollution — are not independent issues, but different facets of the same system. This awareness often changes their way of approaching environmental issues and paves the way for more constructive reflection.

My conferences can be offered in person, remotely, or in a hybrid format. I particularly enjoy in-person interventions, which allow for genuine interaction with the audience, responding to questions live, and making each conference a moment of exchange as much as of transmission.

Every audience is different. When an audience is more reserved, I prioritize exchanges, questions, and concrete examples that resonate with their daily lives. My goal is to gradually create a climate of trust so that everyone feels free to participate, without ever forcing interactions.

Questions are often a sign that the audience is engaged, so I give them significant attention. When time is limited, I ensure to adhere to the format agreed upon with the organizer and suggest, if necessary, to continue discussions after the conference. I address all questions transparently, clearly distinguishing established scientific knowledge from topics that are still under research or debate.

A conference is successful when it meets the audience's expectations. That’s why I always take the time to discuss with the organizer in advance to understand their objectives, the profile of the participants, and the context of the event. This preparation allows me to tailor the content, examples, and level of technicality to provide a relevant, engaging, and useful presentation.

My technical needs are intentionally simple: a screen or a projector, a projection system compatible with my computer if needed (HDMI or USB-C depending on the available equipment), and, depending on the size of the room, a microphone. I can provide a detailed technical sheet in advance to facilitate the organization.

Yes. I have a technical sheet specifying the material needs, the course of the intervention, and the main information useful to the organizers. It is systematically sent in advance of each event.

I usually arrive between 45 minutes and an hour before the start of the conference to familiarize myself with the venue, conduct technical tests, communicate with the organizers, and ensure that everything is ready to welcome the audience under the best conditions.

Yes, I speak in France as well as internationally. My conferences are offered in French. For interventions with a non-French-speaking audience, an interpreter can be arranged by the organizer if necessary.

The presentation materials remain my intellectual property and are generally not distributed after the event. The conditions for video recording or reuse of content are considered on a case-by-case basis, depending on the organizer's needs and the format of the intervention.

Yes, with pleasure. I place great importance on exchanges with participants before or after the conference. These moments often allow for a deeper exploration of certain questions, to extend discussions, and to create a genuine dialogue around the issues addressed.

Organizers appreciate my availability, responsiveness, and the simplicity of exchanges. I take the time to understand their expectations in order to adapt each conference to the context, the audience, and the objectives of the event. They also know they can count on a carefully prepared intervention, respectful of organizational constraints and faithful to the commitments made.