Matthieu Tordeur is an explorer and member of the Société des Explorateurs Français. He has led expeditions in more than 100 countries, crossing deserts, oceans, mountains and polar regions.
He travelled around the world in a 4L to promote microfinance, ran six marathons in a row across the Sahara Desert, crossed Europe twice by bicycle and sailed across the Atlantic. In 2019, he became the first Frenchman and the youngest person in the world to reach the South Pole solo and without resupply (Guinness World Records).
Committed to climate action and spokesperson for the Cryosphere Pavilion at the United Nations Ocean Conference in Nice in 2025, Matthieu has led several educational expeditions in the Alps, the Pamir, Greenland and Antarctica. A passionate communicator, he regularly speaks in schools, companies and at international conferences to share his field experience, raise awareness of glaciers and polar regions, and explain the crucial role they play in the Earth’s climate and ecosystems.
His expeditions serve as platforms to raise awareness of environmental challenges. As founder of the Association 90° SUD, he works alongside the scientific community to collect data, raise awareness and encourage action.


