15 Green Facts in 15 Minutes

David Wills is a sustainability business leader and strategic advisor who is based in Sydney and has over 30 years of industry and sustainability advisory experience. He has an engineering background, starting his career as a refinery engineer followed by a range of technical, management and business leadership roles in industry and consulting. Prior to co-founding Envest Global in 2020, David spent 13 years at CH2M HILL and 14 years at ERM, one of the world's leading sustainability advisory firms. During his time with ERM he was Managing Director for the Australia, NZ, Indonesia and PNG businesses (2007-13), global managing partner for a major energy key client account (2013-15) and Asia Pacific Commercial Director (2015-20). His focus in recent years has been on providing a robust, objective, data-driven assessment of the sustainability performance of aviation industry.