Robert (Bob) J. Scholes, is Distinguished Professor of Systems Ecology at the University of the Witwatersrand, South Africa. He is widely published in the areas of global change, biodiversity, ecosystem services and earth observation. He is or has been a member of several steering committees of international Global Change research programmes, including the International Geosphere-Biosphere Programme, Diversitas and the Program on Ecosystem Change and Society. He was a member of the team that devised the first Group on Earth Observation Implementation Plan and served as the first chair of the GEO Biodiversity Observation Network. He is a member of the South African Academy of Science, fellow of the Royal Society of South Africa, and a foreign associate of the US National Academy of Science.