David Hone serves as the Chief Climate Change Advisor for Royal Dutch Shell. He combines his work with his responsibilities as a board member and Chairman of the International Emissions Trading Association (IETA). Additionally, he works closely with the World Business Council for Sustainable Development and has been a lead contributor to many of its recent energy and climate change publications. After graduating as a chemical engineer, Hone started his career as a refinery engineer in Australia during another period of very high oil prices when energy efficiency was paramount. He spent a period in the Netherlands, before returning to Australia to become involved with another side of the oil industry, energy economics and supply. This led to a move to London as an oil trader for Shell followed by a time managing the global trading and chartering of Shell's crude oil tanker fleet. In 2001 he took up his current role and has not looked back since.