Dr. Wallen earned a B.S. and Ph.D. from the Univ. of Illinois. He studied supercritical fluids at Pacific Northwest National Laboratory using a variety of spectroscopic techniques including NMR, XAFS, Raman and FTIR spectroscopy. The author of over 50 refereed papers his work has been highlighted in Science and C&E News. He has served as a reviewer for top journals and government science panels. Dr. Wallen is currently working in the Department of Chemistry, Biochemistry, and Physics at Florida Southern College in Lakeland, FL. His research interests are on the development/implementation of green nanotechnology, chemistry and sustainable processes applied to materials synthesis, remediation, recycling and chemical analysis. Projects converting biomass to carbon quantum dots for sensing and electronics; nanophotocatalytic oxidation of wastewater; and use of carbohydrates (biogenic materials) for nanomaterials preparation are ongoing as are development of microvolume, high-pressure continuous flow systems (HP-CFS) to prepare and analyze functional, sustainable nanomaterials. He recently developed the concept of a circular economy paradigm for implementing university science laboratories which led to an Award for Innovation in 2016 by the Campus Safety, Health & Environmental Management Association (CSHEMA). At the 21st Annual Green Chemistry & Engineering Conference Dr. Wallen won the 2017 Applied Separations Prime Grant for commitment to teaching Supercritical Fluids. In his spare time he enjoys his family, playing music and outdoor activities.
Department of Natural Resources, Faculty of Geo-Information and Earth Observation, of University of Twente, the Netherlands.PhD in spatial modelling from Wageningen University, the Netherlands.Worked before @ Bioversity International in Colombia, the European Commission’s Joint Research Centre in Italy, Cornell University in the USA.Current roles: Coordinating Lead Author of the Land Degradation and Restoration assessment of IPBES, Chair of the Steering Committee of Ecosystem Services Partnership, and editorial work for several journals. Ecosystem services and rural development researcher. Current research includes RS-based ecosystem service mapping and monitoring, impact assessments of integrated restoration, and prioritization of investments in land degradation neutrality actions.
Dr. Hong Yang is a Associate Professor in Environmental Science, Department of Geography and Environmental Science, University of Reading, UK. His research interests include the effects of climate change and human activities on water environment, water-energy-carbon nexus, and resource management. He has led and been involved in research projects funded by UK Natural Environment Research Council (NERC), Scottish Natural Heritage (SNH), European Research Council (ERC), Research Council of Norway (RCN), Chinese Natural Science Foundation (CNSF) and Chinese Academy of Science (CAS).
Associate Professor in the Department of Earth System Science, Tsinghua University.
Research interests include global land-use and land-cover change mapping, modeling and application; global cropland mapping and uncertainty analysis.