For the past twenty years, French-Swiss explorer-researcher Christian Clot has devoted himself to exploring the most extreme environments of our planet. He has completed long distance journeys and projects on all terrains, from seas to mountains, forests to deserts, examining the interaction between these environments and human adaptation capacities, with several world firsts to his credit. In 2005, he set up a project to study real-time crisis situations, which he expanded in 2014 by developing an international research group on Human Adaptability: Adaptation. The flagship project, the 4X30-Day program, examines the mechanism of human adaptation when facing changes, using an integrative approach in real extreme environment. The next phase as the aim of bringing a group of 20 people (10 women and 10 men) to the same territories for a large-scale study. He has won several awards for his work and shares his experiences through books, films and conferences, either for companies or for the general public, and is the French explorer’s society Vice-president.