Deforestation in the Brazilian Amazon has fallen to its lowest level in 13 years, according to new satellite data from Brazil’s National Institute for Space Research (INPE), continuing a decline that began after President Luiz Inácio Lula da Silva returned to office in 2023. INPE’s DETER alert system detected 2,874 square kilometers (1,110 square miles) of deforestation in the Amazon between August 1, 2025, and July 31, 2026. That was 36% below the previous 12-month period and 55.6% below the average of the preceding decade. The total is the lowest since INPE introduced the current DETER system in 2015. Including data from its predecessor system, the last time alerts were lower was the 2012/13 deforestation year, when 2,766 sq km were recorded. Accumulated deforestation for Aug 1-Jul 31 in recent years according to INPE’s DETER alert system. Image by Mongabay DETER is designed as a rapid-response system for enforcement agencies. It uses satellite imagery to identify new forest clearing quickly enough for authorities to investigate and intervene. It differs from PRODES, INPE’s higher-resolution annual monitoring system, which provides Brazil’s official deforestation rate. Preliminary PRODES figures for the year ending July 31 are expected in October or November. PRODES data for the year ending July 2025 had already put Amazon forest loss at its lowest level in 11 years. The latest DETER figures indicate that clearing fell further during the following year. If PRODES shows a decline similar to that recorded by DETER, Brazil could register its lowest official Amazon deforestation…This article was originally published on Mongabay
