In 2024, Brazil experienced a record-breaking increase in burned areas due to forest fires, with 30 million hectares affected, representing a 62% rise above the historical average of the last four decades, according to data from MapBiomas and other satellite-based studies. The Amazon biome was the most impacted, accounting for more than half of the total burned area, with 15.6 million hectares scorched—double the average burn rate for the region over the past 40 years. Experts attribute the unprecedented scale of the fires to a combination of an exceptional drought and illegal deforestation activities. Satellite imagery also revealed that the Mata Atlântica suffered its largest burned area in over 40 years. The total burned area in Brazil in 2024 exceeded the size of Italy, covering approximately 300,000 square kilometers. Despite this historic fire season, the first half of 2025 saw a notable reduction in fire activity, with a 65.8% decrease in burned areas compared to the same period in 2024, and a 46% drop in fire outbreaks, as reported by Brazil's Ministry of Environment and the Federal University of Rio de Janeiro. However, deforestation in the Amazon increased in the first semester of 2025 after two years of decline. Additionally, in July 2025, the São Paulo state government issued its first fire risk alert of the year due to dry weather conditions, valid until July 17, with risk levels expected to decrease following the arrival of a cold front.
➡️ Grande SP entra em alerta para risco de incêndio pela 1ª vez em 2025 Alerta de incêndio é válido até esta quinta-feira (17/7), passando a ser "baixo" até sábado (19/7), com a aproximação de uma frente fria Leia: https://t.co/T2wRubtCvO https://t.co/z6iRxl7pP3
Governo de SP alerta para risco de incêndios no estado https://t.co/T0bOsPogRg.
Governo de SP alerta para risco elevado de incêndios em grande parte do estado nos próximos dias https://t.co/hAQlzanDgd https://t.co/lMyDdsxQjt