Wildfires have burned thousands of hectares of forest and savanna in the Chacobo-Pacahuara Indigenous territory in the Beni department of northern Bolivia, according to satellite imagery and on-the-ground sources. The fires likely resulted from illegal burns in pastures surrounding the Indigenous territory. The fires hit Chacobo-Pacahuara in September and October 2025, the third consecutive year of unusually high fire activity in the Indigenous land, according to the most recent data released by Global Forest Watch, a platform that uses satellite data to track forest loss worldwide. The flames consumed Indigenous subsistence crops and homes. Locals also expressed worry for the safety of isolated Indigenous communities.  “We have Indigenous relatives who live in voluntary isolation, and we do not know what has happened to them because the forest and the forest islands where they lived burned,” Constantino Toledo Ortiz, a leader of the Chácobo people, told Mongabay in a voice message. “We think they may have crossed into Brazil.” According to a bulletin published by the Center for Legal Studies and Social Research (CEJIS), 1,141 heat hotspots, typically caused by fire, were recorded in the territory between Jan. 1 and Sept. 12, 2025. CEJIS recorded an additional 845 heat hotspots between Sept. 29 and Oct. 16, 2025. The sharp increase is in line with the Bolivian Amazon’s typical fire season, which usually peaks around August and September when the climate is at its driest. Chacobo-Pacahuara was the most affected Indigenous territory in the Bolivian Amazon in 2025. Map by Andrés Alegría/Mongabay. In 2024,…This article was originally published on Mongabay

Tree rings from the Amazon show that the world’s largest rainforest has developed wetter wet seasons and drier dry seasons over the past four decades. The findings point to intense seasonal swings that can cause significant harm to biodiversity and suggest that widespread drying out across the entire Amazon basin is unlikely.  Researchers collected tree cores from two species of floodplain trees; one species only grows in the wet season and another that only grows in dry conditions. They analyzed oxygen isotopes and the chronology of chemical marks left along the annual growth rings from each tree. They found that wet-season rainfall increased by 15-22% since 1980, while dry-season rainfall declined by 5.8-13.5%. “For a long time, there has been talk that it will dry up, and climate models created in the 1990s and early 2000s did indeed show that the Amazon was following that path,” study lead author Bruno Cintra, a biologist at the University of Birmingham, said, reported Mongabay contributor Luís Patriani. “But when we observe how the climate has developed over the last 40 or 50 years, what we see is that there is no clear pattern indicating that the biome as a whole is drying up.” The biome isn’t drying up entirely, because changes in weather patterns are not impacting all regions across the massive forest in the same way. The northern portion of the rainforest is receiving more rain during the wet season, while the southern Amazon region is facing longer and drier dry seasons.…This article was originally published on Mongabay