Veículo
Mongabay (EUA)
Em 2024: 5 notícias
Desde 1995: 15 notícias
Forest degradation releases 5 times more Amazon carbon than deforestation: Study
Publicado em 09 agosto 2024
A study using detailed 3D imagery found that the carbon released by roads, selective logging, fires and natural disturbances in the southern Brazilian Amazon are not fully reflected in the country’s carbon emissions reporting.
The high-resolution findings are thought to be unprecedented, offering precision insights into major land use changes that ultimately impact climate change.
Indigenous and protected areas in the Amazon show significantly less degradation, highlighting their [...]
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Amid record-high fires across the Amazon, Brazil loses primary forests
Publicado em 23 abril 2024The number of fires shows no signs of easing as Brazil's Roraima faces unprecedented blazes, and several Amazonian countries, including Guyana, Suriname and Venezuela, registered record-high outbreaks in the first quarter this year. Fire outbreaks in primary (old-growth) forest in Brazil's Amazon soared by 152% in 2023, according to a recent study, rising from 13,477 in 2022 to 34,012 in 2023. Fires in the mature forest regions are the leading drivers of degradation of the Amazon [...]ver notícia -
Study points to which Amazon regions could reach tipping point & dry up
Publicado em 29 fevereiro 2024Scientists warn that 10% of the Amazon has a high risk of being converted into a drier and degraded ecosystem by 2050, while 47% has a moderate transitional risk. The article, published in Nature, used evidence collected by field researchers who are already witnessing changes in the rainforest as a response to increasing temperatures, extreme droughts, fires and deforestation. These regional tipping points may lead to a systemic breakdown of the biome unless humanity controls global [...]ver notícia -
In Brazil's soy belt, community seed banks offer hope for the Amazon
Publicado em 15 fevereiro 2024In Brazil’s state of Mato Grosso, monoculture has replaced large swathes of the Amazon rainforest and ushered in changes in climate patterns, including severe droughts and scarce rains, according to climate experts. Traditional and Indigenous peoples are looking to counter the impacts of large-scale soy plantations in the region by setting up community seed banks and reforesting degraded lands with species native to the Amazon. Experts say seed initiatives could play a key role in [...]ver notícia -
Thousands of tree species at risk of extinction in Atlantic Forest: study
Publicado em 16 janeiro 2024The Atlantic Forest, located along Brazil's southern coast, has been in dire straits for decades, with expanding cities and agriculture leaving only a small fraction of the forest standing today. But the situation might be even worse than previously thought. Several thousand tree species in the forest are threatened with extinction, a new study has found. Over 80% of endemic tree species are at risk of going extinct — and that's a conservative estimate, the researchers [...]ver notícia -
Beach heat: Study shows increasing temperature extremes on Brazil’s coast
Publicado em 17 agosto 2023By analyzing temperature patterns at five points along the Brazilian coast over the last 40 years, scientists confirmed the impacts of global warming on the country: hotter summers, more heat waves and greater thermal amplitude throughout the day. On the coast of Espírito Santo state, the frequency of daily occurrences of extreme temperatures and heat waves increased by 188% during the period studied; Rio Grande do Sul saw an increase of 100% and São Paulo, 84%. Such climate [...]ver notícia -
Study shows how to maximize mangroves as climate and community solution
Publicado em 08 agosto 2023Mangroves’ high carbon storage capacity can help countries meet their carbon emission reduction targets under the Paris Agreement, while also producing benefits for local communities. Recent research using data from Belize has quantified mangrove carbon storage and sequestration potential and identified where the country should prioritize conservation and restoration to maximize ecosystem services that would benefit multiple sectors. The research has been used by Belizean [...]ver notícia -
Study confirms surge in deforestation in Indigenous lands under Bolsonaro
Publicado em 21 julho 2023Despite being among the best safeguards against deforestation in Brazil's Amazon Rainforest, Indigenous lands saw a sharp increase in deforestation over the past decade, according to a study published recently in the journal Nature . Between 2013 and 2021, deforestation in these ostensibly protected territories increased by 129%, leading to the release of 96 million metric tons of CO into the atmosphere. The study attributes the trend to illegal mining, logging and cattle ranching by [...]ver notícia -
Rare Amazon dark soils could help forest restoration, study shows
Publicado em 14 junho 2023A recent study shows that Amazonian Dark Earths (ADEs), through their high nutrient and microbiological contents, could help to restore deforested areas in the Amazon region. Furthermore, these unique soils, enriched with beneficial microorganisms like bacteria and archaea, can boost the fertility of typically nutrient-depleted soils in the Amazon region. Building on these findings, researchers plan to further analyze the composition and microorganisms of ADEs, aiming to help restore and [...]ver notícia -
Biden-Lula Meeting: The time is right for U.S. and Brazil to work together for Amazonia (commentary)
Publicado em 10 fevereiro 2023The Amazon rainforest will be a key point of discussion at today’s summit between U.S. president Joe Biden and Brazilian president Luiz Inácio Lula da Silva. Jeffrey Hoelle, an Associate Professor of Anthropology at UC-Santa Barbara, and Valério Gomes, a Professor at the Amazon Institute of Smallholder Agriculture at the Federal University of Pará, argue that there are a number of opportunities for the U.S. and Brazil to collaborate when it comes to climate change [...]ver notícia