Amazon Forest is burning

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Since the beginning of the year, around  million hectares  an area larger than the state of Tasmania —have been burned in Brazil, almost matching the total number of fires from all of last year. S has, mainly in August and in the first half of September. The satellite images below are shocking, and the consequences are disastrous across the continent, particularly for the r 

Normally, moisture from the Amazon is transported to central-southern Brazil through the South Atlantic C Zone (S is responsible for the largest volumes of rainfall in the southeast, contributing to water supply and energy generation. This year, we have seen aerosols spread and suffocate the  

Image: Aerosol optical depth (nm) for South America. Source Copernicus. 

What makes this scenario worse is an exceptional drought that has been affecting parts of Brazil for the last three months. Winter is usually dry in Brazil, but in 2024 was atypical. The map below shows how much the observed precipitation deviates from the climatological average or the Standardized Precipitation Index (SPI). The red colour represents the maximum value, indicating that the imbalance between water supply and demand is resulting in an extreme drought (D4) in much of South America. 

Image: 3-Month ERA5 Global SPI across South America. 

The combination of historic droughts and wildfires can have devastating effects not only in South America but may also contribute further to climate change around the world. 

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