Geoff Melton: Since graduating from the University of St Andrews in Scotland with a degree in Physics and Electronics, Geoff Melton has worked in welding research and development for nearly 40 years. He is a Technology Manager at TWI in Cambridge, UK, and is the Chairman of the Technical Commission VIII for Health, Safety and Environment of the International Institute of Welding (IIW). The recommendations issued by the IIW play an important role in the definition of national and international regulations - for example on the subject of welding fumes.