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Global warming, deforestation, fires combined could hasten Amazon demise, study finds
Publicado em 27 de fevereiro de 2024
BOGOTA, Feb 14 (Reuters) - Drought and heat driven by climate change and other factors threaten to cause the collapse of South America's lush Amazon rainforest system, scientists said on Wednesday in a study that found that nearly half of it could be pushed to a tipping point by 2050.
"The region is increasingly exposed to unprecedented stress from warming temperatures, extreme droughts, deforestation and fires, even in central and remote parts of the system," the researchers [...]
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Marine sediments explain how part of Brazil’s Northeast region became semi-arid
Publicado em 22 junho 2021Rainfall associated with the Intertropical Convergence Zone (ITCZ), the belt of converging trade winds and rising air that encircles the Earth near the Equator, affects the food and water security of approximately 1 billion people worldwide. They include about 11% of the Brazilian population, concentrated in four states of the Northeast region—Rio Grande do Norte, Ceará, Piauí, and Maranhão. Large swaths of these states have a semi-arid climate, and about half of all [...]ver notícia -
Poaching affects behavior of endangered capuchin monkeys in Brazilian biological reserve
Publicado em 21 junho 2021A study conducted in the Una Biological Reserve in the state of Bahia, Brazil, shows that in a habitat with high hunting pressure the risk of predation has such a significant impact on the behavior of the Yellow-breasted capuchin monkey Sapajus xanthosternos that it even avoids areas offering an abundant supply of plant biomass and invertebrates, its main sources of food. An article reporting the findings of the study is published in the American Journal of [...]ver notícia