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The sea surface temperature in the North Atlantic Ocean can be a predictor up to three months in advance of extreme climate events involving reduced rainfall and intense drought in the Northeast region of Brazil. This is one of the main findings of a study by researchers in Brazil, China, Australia and Germany, according to an article published in Geophysical Research Letters. Using a novel methodology based on the concept of precipitation deficit, the study showed that in recent years the [...]

Smithsonian’s National Museum of Natural History researcher Murilo Pastana and his colleagues have discovered and described two new species of Amazonian fish—one with striking red-orange fins and the other so small it is technically considered a miniature fish species—in a paper published today, May 16, in the Zoological Journal of the Linnean Society. Both species inhabit waters located at the bleeding edge of human encroachment into the Amazon rainforest roughly 25 miles [...]

According to the latest report of the Intergovernmental Panel on Climate Change (IPCC), almost half the world’s population – about 3.3 billion to 3.6 billion people – live in contexts that are highly vulnerable to the impact of climate change. Social inequality greatly increases this vulnerability. To investigate the effects of inequality on environmental risk reduction and disaster prevention programs, researchers in Brazil affiliated with the Federal University [...]

The grasses that grow in tropical savannas evolved some 8 million years ago, in the presence of fire, long before humans emerged on the planet. Fire continues to play a key evolutionary role in this type of biome. The role of fire in savannas has been the subject of articles published by Agência FAPESP since 2017, and is further elucidated in a new study led by ecologist Alessandra Fidelis, a professor at São Paulo State University’s Institute of Biosciences (IB-UNESP) in [...]

A study conducted by researchers affiliated with São Paulo State University (UNESP) in Brazil shows that large mammals have a major impact on plant diversity, primary productivity and biomass in the understory of Neotropical forests. Species like the Lowland tapir (Tapirus terrestris) and White-lipped peccary (Tayassu peccari) help keep an ecological balance in areas such as the Atlantic Rainforest with different levels of productivity, while also influencing the spatial structure [...]

Climate change was the main cause of the extremely heavy rainfall that led to severe flooding, deaths and massive damage in cities across Minas Gerais state, Southeast Brazil, in January 2020, according to a study published in the journal Climate Resilience and Sustainability. Using climate modeling for the region, the study shows that the effects of industrialization and global warming increased the probability of far higher volumes of rain than expected by 70% compared to scenarios with [...]

Mutations in SARS-CoV-2 are one of the hottest topics right now. Novel variants of the virus are spreading rapidly in places where the COVID-19 pandemic appeared to have been brought under control and could make the current critical stage last much longer than expected. A study conducted at the University of Campinas’s Gleb Wataghin Institute of Physics (IFGW-UNICAMP) in the state of São Paulo, Brazil, modeled the mutations undergone by SARS-CoV-2 during replication and the [...]

Most cities in São Paulo state (Brazil) have low potential capacity to adapt to climate change in terms of the ability to formulate public policy that facilitates the revamping of their housing and transportation systems, for example, to account for the impact of climate change. This is the main conclusion of a study conducted by researchers at the University of São Paulo (USP) in partnership with colleagues at the University of Campinas (UNICAMP) and the Federal University of [...]

A study published this May in the journal Clinical Infectious Diseases suggests that people who have had dengue in the past are twice as likely to develop symptoms of COVID-19 if they are infected by the novel coronavirus. The findings of the study were based on an analysis of blood samples from 1,285 inhabitants of Mâncio Lima, a small town in the state of Acre, part of Brazil’s Amazon region. The principal investigator was Marcelo Urbano Ferreira, a [...]