Subnational REDD+ initiatives offer invaluable learning opportunities. They are the testing ground for proof of concept, and can provide pillars for robust national REDD+ programs. They are the ‘real life’ locations where outcomes related to human wellbeing and forests are expected. They are therefore an indispensable empirical reference point for the success or failure of policy and technical innovations made at all jurisdictional levels. The UNDP (2014) estimates that 50–80% of climate mitigation actions depend on decisions made at subnational and local levels.
Module 2 of GCS uses the BACI method to measure the 3E+ impacts (effectiveness, efficiency, equity, and co-benefits) of REDD+ in subnational initiatives. This counter-factual approach involves comparing villages and households that are inside and outside of REDD+, and comparing impacts before and after the introduction of various REDD+ interventions.
Module 2 has produced several publications on the use of BACI for analyzing REDD+ (Jagger et al. 2009; Jagger et al. 2010) as well as other guidelines, methods and reflections on assessing performance of REDD+ in terms of carbon and non-carbon outcomes (Herold & Romijn 2010; Sunderlin et al. 2010; Duchelle et al. 2015; de Sassi et al. 2015; Sunderlin et al. 2016).