Veículo
Environmental News Network (EUA)
Em 2022: 4 notícias
Desde 1995: 43 notícias
Brazil’s Northeast Region Probably Dried up During Earth’s Last Minimum Axial Tilt Thousands of Years Ago
Publicado em 04 maio 2022
The São Francisco River drainage basin in Brazil’s Northeast region contains a substantial portion of the savanna-like Cerrado biome as well as large areas of Caatinga semi-arid thorn forest and some smaller fragments of Atlantic Rainforest. The Cerrado, which occupies the central part of the basin, is a complex biome with various physiognomies, from open grassland and brush with no trees to closed-canopy woodland.
The São Francisco River drainage basin in Brazil’s [...]
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Deforestation of Indigenous lands could prevent Brazil from achieving climate change mitigation targets
Publicado em 20 abril 2022Researchers have developed global forecasts that can provide up to a year's advance notice of marine heatwaves, sudden and pronounced increases in ocean temperatures that can dramatically affect ocean ecosystems. The forecasts described in the journal Nature could help fishing fleets, ocean managers, and coastal communities anticipate the effects of marine heatwaves. One such heatwave, known as “the Blob,” emerged about 2013 in the northeast Pacific Ocean and persisted [...]ver notícia -
Deforestation And Climate Change Threaten Brazil’s New Agricultural Frontier
Publicado em 04 março 2022Deforestation for agribusiness expansion in Brazil, in conjunction with climate change, has worsened the already severe drought suffered in the last decade by the transition zone between the eastern Amazon and the Cerrado, the vast tropical savanna ecoregion in central and western Brazil. Deforestation for agribusiness expansion in Brazil, in conjunction with climate change, has worsened the already severe drought suffered in the last decade by the transition zone between the eastern Amazon [...]ver notícia -
Even the smallest pollution particles change the rainfall regime in the Amazon
Publicado em 04 fevereiro 2022Even the finest particles of pollution influence the process of cloud formation and the rainfall regime. A study conducted in Manaus, the capital of Amazonas state in Brazil’s North region, shows that oxidation leads small aerosols expelled by factories and car exhausts, for example, to grow very rapidly, reaching up to 400 times their original size, and that this affects raindrop formation. Even the finest particles of pollution influence the process of cloud formation and the [...]ver notícia -
Citizen Scientists Help Assure Quality of Coastal Biodiversity Monitoring
Publicado em 21 outubro 2021In 2019, history student Rodrigo Gomes found out on social media about a call for volunteers to take part in a scientific project relating to the ocean and conducted by the Federal University of São Paulo’s Institute of Marine Sciences (IMAR-UNIFESP) in Santos, on the coast of the state of São Paulo, Brazil. He signed up for the project, took workshops, and trained in the field. “I was very fortunate to have all that contact with professors and learned a great deal [...]ver notícia -
Climate Change Will Alter Functioning of Marine Microbial Communities, Study Shows
Publicado em 14 outubro 2021A study by an international group of researchers shows that interaction between communities of plankton – microorganisms that live at the bottom of the food chain in the oceans and supply most of the planet’s oxygen – will be affected by climate change in different ways depending on location. A study by an international group of researchers shows that interaction between communities of plankton – microorganisms that live at the bottom of the food chain in the oceans and [...]ver notícia -
Concepts from physics explain importance of quarantine to control spread of COVID-19
Publicado em 23 junho 2021Mathematical models that describe the physical behavior of magnetic materials can also be used to describe the spread of the novel coronavirus that causes COVID-19. Mathematical models that describe the physical behavior of magnetic materials can also be used to describe the spread of the novel coronavirus that causes COVID-19. This is the conclusion of a study conducted in Brazil by researchers affiliated with São Paulo State University (UNESP) in Rio Claro and Ilha Solteira and [...]ver notícia -
Experiments Simulate Possible Impact of Climate Change on Crabs
Publicado em 15 junho 2021Albeit very small, with a carapace width of only 3 cm, the Atlantic mangrove fiddler crab Leptuca thayeri can be a great help to scientists seeking to understand more about the effects of global climate change. In a study published in the journal Estuarine, Coastal and Shelf Science, Brazilian researchers supported by FAPESP show how the ocean warming and acidification forecast by the end of the century could affect the lifecycle of these crustaceans. Embryos of L. thayeri were exposed [...]ver notícia -
Research identifies climate-change refugia in dry-forest region
Publicado em 26 maio 2021Several indicators point to the adverse impacts of climate change on the planet’s vegetation, but a little-known positive fact is the existence of climate-change refugia in which trees are far less affected by the gradual rise in temperatures and changing rainfall regimes. Climate-change refugia are areas that are relatively buffered from climate change, such as wetlands, land bordering water courses, rocky outcrops, and valleys with cold-air pools or inversions, for example. A study [...]ver notícia -
Forest fires drive expansion of savannas in the heart of the Amazon
Publicado em 04 maio 2021White-sand savannas are expanding in the heart of the Amazon as a result of recurring forest fires, according to a study published in the journal Ecosystems. White-sand savannas are expanding in the heart of the Amazon as a result of recurring forest fires, according to a study published in the journal Ecosystems. The study was supported by FAPESP, and conducted by Bernardo Monteiro Flores, currently a postdoctoral fellow in ecology at the Federal University of Santa Catarina (UFSC) in [...]ver notícia