“…Despite some clear successes (Jarrah, 2014), HIMA failed to achieve its major goal of securing carbon revenue (Royal Norwegian Embassy, 2015b), paralleling the outcome at all other pilot REDD+ sites across Tanzania (Royal Norwegian Embassy, 2015a; Sunderlin et al, 2015). Furthermore, several measures indicate that, without carbon payments, deforestation continued apace on the island: (a) overall forest extent on Pemba (protected areas excluded) was 25% in 2001 but had declined to 15% by 2018, (b) median forest cover change across the island was −3.1%/year for 2001-2010, but −3.4%/year for 2010-2018, (c) ward-level rates of forest cover change were generally negative, with 89% of wards experiencing a reduction in forest area during 2001-2010 and 75% during the 2010-2018 period (Collins, 2020), and (d) a comparison of baseline rates of deforestation in the first period to rates in the second period shows that of the 18 Pemban shehia that had registered CoFMAs, six had managed to slow their rates of net deforestation in the latter period and two had greater forest cover in 2018 than 2010 (i.e., they had reversed the trend, Andrews et al, 2020).…”