![]() Virtually all emission reductions (93%) occurred in the states of Mato Grosso (74%) and Rondônia (19%). Our results indicate that forest loss during the study period was 62,321 km2 lower than the baseline and associated with 1.5 ± 0.4 Pg of avoided CO2 emissions to the atmosphere. Simulated (baseline) and observed deforestation were compared to five biomass-density maps in order to estimate Brazil’s GHG emission reductions. Baseline spatialization was performed at the state level and informed by the 2000–2004 deforestation patterns in each state, resulting in nine state-specific calibrated ANNs. We used an artificial neural network (ANN) model to spatialize the plan’s original three-phase baseline and compare (i) the simulated carbon emissions from the baseline scenario to (ii) the emissions from observed deforestation during 2006–2017. According to the plan, emission reductions are measured against a deforestation baseline, initially corresponding to the average forest loss observed from 1996 to 2005 (reference period). This result conforms to the GHG emission reduction targets set by the National Climate Change Plan, originally divided into three phases: 2006–2009 2010–20–2017. ![]() Alarming rates of forest loss in the Amazon region gained international attention in the past, but deforestation declined substantially since 2004 (although the rate has trended upwards since 2012). Over three-fourths of Brazil’s greenhouse gas (GHG) emissions originate from land-use/cover change (LUCC).
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