Greg has had a long career of both programme management and policy development in the humanitarian sphere in Africa, Asia and Latin America. With the United Nations, he has served as Deputy Head of Office, Myanmar, Senior Advisor in the Coordination and Response Division, and Chief of Section, Protection and Displacement. In 2016 Greg led an inter-agency team supporting the Secretary General’s Special Envoys on El Niño and Climate, Mrs. Mary Robinson and Ambassador Macharia Kamau, producing guide to early action to respond to the human impacts of extreme weather events related to El Niño.

Prior to joining the United Nations, Greg worked for Oxfam in several different capacities, including as Head of the New York office, global policy lead for conflict and humanitarian issues, and Country Director in the Russian Federation and Ethiopia.

Greg also spent one year leading a joint project between civil society and the Government of Canada on the ‘Responsibility to Protect’ in Africa, and several years in Central America with the Arias Foundation for Peace and Human Progress, managing projects aimed at curbing the impact of small arms violence in the post-war context, and chairing the global steering group in support of an Arms Trade Treaty. He holds degrees from Queen’s University and the London School of Economics.