Wendel Trio Wendel Trio is the Director of Climate Action Network Europe since September 2011. Before taking the leadership of the biggest climate change NGO network, he worked for more than 20 years in some of its biggest member organisations. This includes working as political director for Oxfam in Belgium, as campaign director for Greenpeace Belgium and as the international Director of the Policy and Business Unit of Greenpeace International. His engagement in climate change policy started long ago while being the representative of the Belgian national Advisory Council on Climate Change and Sustainable Development to the World Conference on Environment and Development in Rio de Janeiro in 1992.