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Tropical Primary Forest Loss Fell 36% in 2025, Led by Brazil’s Crackdown

Researchers say strong enforcement can quickly slow clearing.

A drone views shows fallen trees in a secondary forest where farmers (not pictured) were in the last stages of clearing land as soybean farming expanded in the Amazon, in Santarem, Para state, Brazil October 6, 2024. REUTERS/Amanda Perobelli/File Photo
A drone view shows forest fire devastation amid smoke in the Amazon, in Labrea, Amazonas state, Brazil September 6, 2024. REUTERS/Bruno Kelly/File Photo
Government policies also helped to limit forest loss in Indonesia, where it increased by 14 percent but was well below the highs seen a decade ago
A deforested area in the Amazon rainforest, in the municipality of Tome-Acu, Brazil

Overview

  • An annual satellite-based assessment found 4.3 million hectares of tropical primary rainforest were lost in 2025, a sharp drop from 2024.
  • Brazil drove much of the improvement as primary forest loss excluding fires fell 41% after President Luiz Inacio Lula da Silva tightened environmental enforcement.
  • Even with the one-year dip, researchers said global losses remain about 70% above the pace needed to meet the 2030 pledge to halt and reverse forest loss.
  • Fires were a major factor, accounting for 42% of global tree-cover loss in 2025, and Canada recorded its second-worst wildfire season with 5.3 million hectares burned.
  • Agriculture stayed the main driver, with commodity expansion in places like Brazil and Bolivia and subsistence farming in the Democratic Republic of Congo, while Indonesia’s losses rose in part due to an expanded food-estate program.