This chapter presents findings from quantitative and qualitative investigations of the perspectives of participants involved in international climate governance over the period 2010–2015. An established framework of principles, criteria and indicators for institutional governance was applied to two mechanisms under the UNFCCC: the initiative referred to as ‘Reducing emissions from deforestation and forest degradation and the role of conservation, sustainable management of forests, and enhancement of forest stocks in developing countries’ (REDD+) and the Clean Development Mechanism (CDM) of the Kyoto Protocol. Assessment focuses on the governance value of interest representation in terms of inclusiveness (access) and resources (allocation).