After being awarded a Ph.D at Oxford in 1957, Dr Colin Campbell joined the oil industry as an exploration geologist. His career took him to Borneo, Trinidad, Colombia, Australia, Papua New Guinea, the USA, Ecuador, United Kingdom, Ireland, and Norway. He is now a Trustee of the Oil Depletion Analysis Centre ("ODAC"), a charitable organisation in London that is dedicated to researching the date and impact of the peak and decline of world oil production due to resource constraints, and raising awareness of the serious consequences. He has published extensively, and his recent articles have stimulated lively debate. His views are provocative yet carry the weight of a wide international experience.