Rik Leemans heads the Environmental Systems Analysis group at Wageningen University and Research. He leads interdisciplinary global-change research projects and contributes to international science-policy assessments, like the IPCC and Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), as well as to research programs such as Future Earth. He has modeled boreal forest dynamics at Uppsala University (Sweden) and the International Institute for Applied Systems Analysis (Austria). He now develops transdisciplinary approaches to deal with global change and sustainability. Author of numerous papers on ecosystem dynamics, ecosystem services, biodiversity, climate and global change, vulnerability and sustainability, he participated in the 4th IPCC Report, awarded the 2007 Nobel Peace Prize, and the Millennium Ecosystems Assessment, distinguished with the Zayed Prize.