Dr. Le Yu is an Associate Professor at the Department of Earth System Science, Tsinghua University. His research has been on the use of geographical information techniques to monitor and model global land use change, especially cropland and to facilitate many applications, e.g., food security, biodiversity conservation, and land system modelling. He particularly focuses on satellite-based methods to quantify the spatiotemporal change of land cover/use and understand their ecological, environmental, and socioeconomic impacts on sustainable development. He is a Fellow of the Royal Geographical Society (RGS-IBG), a Fellow of the Higher Education Academy, a Senior Member of the Institute of Electrical and Electronics Engineers, and a Prominent Visiting Researcher at the University of Technology Malaysia (UTM). He is currently Editor-in-Chief of Geo: Geography and Environment, Section Editor-in-Chief of Land, Associate Editor of International Journal of Remote Sensing, Topical Editor of Geoscientific Model Development and Section Editor of Global Sustainability.