Since 1998, the PRODES project has been conducting satellite monitoring of deforestation in the Legal Amazon region and has produced annual deforestation rates which are used by the Brazilian government to establish public policies. The annual rates are estimated from the deforestation increments identified in each satellite image that covers the Legal Amazon. Preliminary estimates are presented in December of each year with refined data presented in the first half of the following year.
PRODES estimates are considered reliable by national and international scientists (Kintish, 2007). This system has been shown to be of great importance for the actions and planning of public policies in the Amazon. The PRODES project has the collaboration of the Ministry of the Environment (MMA) and the Brazilian Institute of Environment and Natural Renewable Resources (IBAMA) and is part of the Ministry of Science, Technology and Innovation (MCTI) in the Permanent Group of Interministerial work to reduce deforestation rates in the legal Amazon created by presidential decree of July 3, 2005. The WGIP is part of the Action Plan for the Prevention and Control of Deforestation in the Legal Amazon, launched on March 15, 2004 .
MapBiomas is another initiative of the Climate Observatory Greenhouse Gas Emissions Estimation System, which monitors the transformations of the Brazilian territory from the mapping of land cover and use in Brazil, with several institutional partnerships.