Dr. Raymond N. Yong is the William Scott Professor Emeritus of Civil Engineering at McGill University, Canada, and emeritus professor at the University of Wales, Cardiff, United Kingdom. He is a fellow of the Royal Society (Canada), and a Chevalier de l'Orde National du Quebec. He is currently engaged in research on issues in geoenvironmental sustainability.
Dr. Masashi Nakano is the emeritus professor of soil physics and soil hydrogeology at the University of Tokyo, and director of the RISST (Research Institute of Soil Science and Technology), Japan. He was recently a member of the Science Council of Japan, and is now working on such issues in soil/clay science as adsorption/transport of chemicals on soils and mineral corrosion by microorganisms.
Dr. Roland Pusch is emeritus professor at Lund University, Sweden, and is presently guest professor at Lulea Technical University, Sweden, and honorary professor at East China Technological Institute. He is currently the scientific head and managing director of Drawrite AB, Sweden, and is working on issues of long-term stability of clay buffers in HLW repositories and on design and performance of hazardous landfills.