Gary is the Director of the New Zealand Antarctic Research Institute, a Professor of Marine Science at the University of Otago and also holds an adjunct position in the Geology Department at Otago. He has lectured at the University of Oxford and held a research fellowship at Wolfson College. Gary has participated in and led more than 20 expeditions to the Antarctic and Subantarctic supported by the New Zealand and US Antarctic Programmes. His collaborative research programmes have attracted more than $20 million in research grants and resulted in more than 100 scientific papers in peer research journals. He has held the Byrd Fellowship at the Ohio State University, the Blaustein Visiting Professorship at Stanford University and in 2006 he received a Sir Peter Blake Leadership award for his role in bringing together the multinational team for the ANDRILL project, which he chaired between 2004 and 2009.