This report examines how biodiversity co-benefits in REDD (Reducing Emissions from Deforestation and Forest Degradation) can be enhanced, both at the design and implementation level. It discusses potential biodiversity implications of different REDD design options that have been put forward in the international climate change negotiations and proceeds by examining how the creation of additional biodiversity-specific incentives could be used to complement a REDD mechanism, so as to target biodiversity benefits directly.