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Fast and unplanned growth of cities providing ideal conditions for the creatures to thrive, say researchers. [...] More than 1.1m stings were reported between 2014 and 2023, according to data from the Brazilian notifiable diseases information system. There was a 250% increase in reports of stings from 2014 to 2023, according to research published in the journal Frontiers in Public Health. The rise in cases has been driven by rapid, unplanned [...]

Researchers have been able to demonstrate a link between the climatic phenomenon and the propensity for fires, creating a tool that could help with future prevention efforts. The risk of fires in the Amazon is greater in regions where groundwater storage is compromised, especially when El Niño exacerbates the drought. Using satellite images and data from fires, researchers have been able to demonstrate the relationship between the climatic phenomenon and the propensity for fires, [...]

São Sebastião, a municipality on the coast of São Paulo state in Brazil that was partially cut off from the rest of the country in February 2023 after a period of torrential rain, had more than 1,000 landslide points, according to an inventory produced by researchers at the University of São Paulo's Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG-USP) and Institute of Geosciences (IGc-USP) using aerial images collected shortly after the [...]

São Sebastião, município do litoral norte de São Paulo que ficou parcialmente isolado no carnaval de 2023 após chuvas de volume recorde, tem mil pontos de escorregamento de solo. O dado faz parte de um inventário realizado por pesquisadores dos institutos de Astronomia, Geofísica e Ciências Atmosféricas (IAG) e de Geociências (IGc) da Universidade de São Paulo (USP) usando imagens aéreas feitas logo após o [...]

The latest data on forest fires confirms what we've long feared: Forest fires are becoming more widespread, burning at least twice as much tree cover today as they did two decades ago. Using data from researchers at the University of Maryland, recently updated to cover the years 2001 to 2023, we calculated that the area burned by forest fires increased by about 5.4% per year over that time period. Forest fires now result in nearly 6 million more hectares of tree cover loss per year than [...]

A mighty river is flowing out of the Amazon rainforest, and it's not the one you're thinking of. In the first kilometre above the forest canopy, a "flying river" is transporting moisture evaporated from Amazonian trees southwards along the Andes mountains towards Rio Grande do Sul, the southernmost state in Brazil. Almost the entire state - an area larger than the UK - is currently affected by unprecedented floods. The flying river has acted like a firehose, fuelling [...]

Although the rate of deforestation in the Brazilian Amazon fell in 2023, the region is faced with another challenge in the shape of fire affecting the native vegetation that has so far been spared destruction. An article published in the journal Global Change Biology warns that wildfires in old-growth forests rose 152% last year compared with 2022, despite a drop of 16% in the total number of fires throughout the Amazon and a 22% drop in deforestation. In an analysis of satellite images, the [...]

A digital map of flood-prone areas in Brazilian cities São Paulo and Rio Branco created by public school students; a history of floods recorded in a poor neighborhood of São Paulo based on the residents' recollections; new communication channels with the Civil Defense authorities to improve the early warning system—these are some of the instruments for citizen participation and mobilization shown to be effective in initiatives to increase survival of urban [...]

The Brazilian coast, especially in the South and Southeast regions, is already suffering from the impact of climate change, with increasingly extreme surface air temperatures and more frequent swings from heat to cold and back. This is one of the results of a study described in an article published in Scientific Reports. On the coast of Espírito Santo, Rio Grande do Sul and São Paulo states, the frequency of temperature extremes and heatwaves (several consecutive days with very [...]