In brief
Deforestation monitor MapBiomas reports only 3.1 million hectares burned in Brazil’s Amazon in 2025, a sharp drop from 15.8 million in 2024—a record low since 1985. The lower burn area came as cooler La Niña conditions replaced the previous year’s El Niño heat, easing a disastrous fire season that cost the rainforest millions of hectares. Climate experts warn that a return to El Niño patterns could widen dry spells and reignite fire risk, meaning vigilance must continue. The figures support President Luiz Inácio Lula da Silva’s promise of zero deforestation, though critics point to controversial oil exploration permits that may undermine environmental goals. The decline’s magnitude, however, offers a hopeful sign that land‑use policies and stricter enforcement can achieve measurable results in the world’s largest rainforest.
A 2025 Amazon fire downturn arrives after a record‑breaking 2024 season.
MapBiomas data show only 3.1 million hectares burned in the Amazon last year, compared with 15.8 million hectares in 2024.
This area is the smallest recorded since the group began tracking in 1985.
Climate scientists attribute the 2024 blaze to extreme weather and human activity; the 2025 reduction is partly due to cooler La Niña conditions that replaced the previous year’s warmer El Niño.
"The 31% drop is encouraging, but we cannot assume this is a trend yet," says Vera Arruda, a MapBiomas coordinator.
Brazil’s overall burned hectares fell from 30 million in 2024 to 12.7 million in 2025, the lowest nationwide since 2007.
Despite the gains, the 2025 figures highlight the need to keep prevention efforts active as El Niño could extend dry seasons this year.
President Lula campaigned on zero deforestation, and the drop supports his re‑election bid, though critics argue that new oil exploration permits at the Amazon’s mouth conflict with that pledge.
Extending forest health, a version of the tropical rainforest models appears below, illustrating how burned area correlates with temperature and precipitation changes.
