Lennart Olsson is Professor of Geography at Lund University and founding director of LUCSUS (Lund University Centre for Sustainability Studies, www.lucsus.lu.se) 2000-17. He was also leading the Linnaeus Centre LUCID (Lund University Centre of Excellence for Integration of Social and Natural Dimensions of Sustainability) 2008-18. His research fields include human-nature interactions in the context of agriculture, land degradation, climate change and food security in Africa (with a focus on The Sahel and Sudan) and globally, and he has a strong interest in theoretical approaches to interdisciplinarity. A current research focus is on the transition from annual monocultures to perennial polycultures in agriculture. He is currently associate editor of the journals: Ecology and Society, and the new journal Global Sustainability. He has had research positions in Australia, USA and Hong Kong and participated in several international assignments including the IPCC and UNEP-GEO assessments. He was Coordinating Lead Author for the chapter on livelihoods and poverty in IPCC’s 5th Assessment Report 2011-14, and for the chapter on Land Degradation in the IPCC special Report on Climate Change and Land (SRCCL), 2017-19. Link to his publications: https://scholar.google.se/citations?user=LfQd2nQAAAAJ&hl=en&oi=ao