Dr. Michael Thorne has been involved in radiological protection since 1974. His early work was on internal dosimetry, but for the last 40 years he has been mainly involved in studies of the transport of radionuclides in the environment and in the management of solid radioactive wastes. He is a former Scientific Secretary to the ICRP, a former member of the UK National Dose Assessment Working Group, a former President of the Society for Radiological Protection, the Editor-in-Chief of the Journal of Radiological Protection, an advisor to the IAEA on uranium in the environment and former Chairman of the Steering Committee for the EU COMET project on radioecology.