Sébastien Treyer holds a background in environmental engineering, a PhD in environment management, and specialises in foresights for environmental policies. He has been in charge of developing foresights at the French ministry for environment, worked as a researcher at AgroParisTech, and is now director of programmes at Iddri (institute for sustainable development and international relations, Paris), a think tank specialised in policy research and negotiations for environmental issues necessitating coordination at the international scale.