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Earth.com (EUA)
Em 2024: 15 notícias
Desde 1995: 45 notícias
Extreme fire risk has grown exponentially in a hotter climate
Publicado em 14 agosto 2024
These alarming findings are detailed in the first edition of the State of Wildfires report, which examines extreme wildfires of the 2023-2024 fire season (March 2023 – February 2024), while also exploring their causes.
Fires under different climate scenarios For the investigation, the scientists examined whether such events could have been predicted and assessed how risk of similar occurrences might change under different climate change scenarios in future.
The report, which will [...]
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Resilient trees can help protect cities from climate change
Publicado em 10 agosto 2024In São Paulo, Brazil, scientists have discovered that these remarkable trees not only survive but thrive in challenging environments, continuing to provide invaluable contributions to the ecosystem. Drought in São Paulo’s green spaces In a study focusing on the 2013-14 drought, scientists observed how this extreme weather event affected urban trees. The researchers studied seasonal changes, noting that usually, a rainy summer should encourage vigorous tree [...]ver notícia -
Even mild COVID can cause prolonged cognitive impairment
Publicado em 25 julho 2024Memory loss and attention deficit are common complaints among those who have recovered from severe COVID-19. However, a new study from the University of São Paulo (USP) in Brazil reveals that even individuals with mild COVID cases can experience cognitive impairments more than 18 months after infection. This finding underscores the importance of comprehensive rehabilitation for long COVID sufferers. COVID infection and cognitive [...]ver notícia -
Secrets of fungi diversity can be pulled out of thin air
Publicado em 14 julho 2024The vast and astounding diversity of nature remains largely unexplored, especially when considering the countless species of insects and fungi still unknown to science. This hidden biodiversity holds secrets that could revolutionize our understanding of ecosystems and offer solutions to some of the world’s most pressing environmental challenges. Racing against time However, as the alarming rate of nature’s loss accelerates due to factors like climate change, habitat [...]ver notícia -
Binge eating linked to a specific set of brain cells
Publicado em 08 junho 2024In a remarkable discovery, researchers have pinpointed a specific group of neurons that appear to drive compulsive eating behaviors (binge eating), even in the absence of hunger. This finding could significantly advance our understanding of eating disorders and offer new targets for treatment. What is binge eating? Binge eating, also known as compulsive eating, is a disorder characterized by frequent episodes of consuming large amounts of food, often [...]ver notícia -
Covid virus can remain in sperm months after infection
Publicado em 05 junho 2024Researchers at the University of São Paulo (USP) in Brazil have demonstrated for the first time that SARS-CoV-2, the virus responsible for COVID-19, can persist in sperm for up to 90 days post-hospital discharge and up to 110 days after initial infection, reducing semen quality. These findings suggest that individuals planning to conceive should consider a “quarantine” period post-recovery. Covid invades the reproductive system Four years into [...]ver notícia -
Wildfires in old-growth Amazon forests increased by 152% in 2023
Publicado em 11 maio 2024The Amazon rainforest, often hailed as the “lungs of the Earth,” is facing a dire threat from an unexpected source: wildfires raging through its untouched, old-growth forests. Despite a decrease in deforestation rates in 2023, a new survey reveals a staggering 152% increase in these devastating fires compared to the previous year. Paradoxical problem of Amazon wildfire While deforestation in the Brazilian Amazon has decreased, the escalating threat of [...]ver notícia -
Large herbivore extinctions drastically affect forest ecosystems
Publicado em 08 maio 2024In nature, large herbivores like tapirs, deer, and peccaries play the role of powerful conductors. Their extinction, however, threatens to bring silence to the vibrant forest orchestra. An insightful new study reveals the hidden impact of these mighty creatures’ disappearance on plant-pathogen interactions, hinting at cascading consequences for tropical biodiversity. Herbivores extinction When large herbivores vanish due to human activities like hunting or [...]ver notícia -
Coffee genome adapted to climate changes over millennia
Publicado em 15 abril 2024Coffee is the fuel that keeps the world running. Whether you prefer a bold espresso or a creamy cappuccino, the chances are that your favorite brew comes from a plant called Coffea arabica. Yet, behind the daily caffeine fix lies an incredible genome story spanning hundreds of thousands of years, continents, and even changing climates. History of coffee genome You might not think about it as you sip your morning coffee, but within your cup lies a fascinating genetic story. Scientists [...]ver notícia -
New AI system detects animals on roads to prevent accidents
Publicado em 10 abril 2024Imagine you’re driving down a scenic highway. Lush rainforests surround you, the sun is shining, and you’re enjoying the road trip. But then, an unexpected obstacle appears – a tapir crosses the road. Animal-involved car accidents are a serious problem, causing injury and death to humans while also devastating wildlife populations. In Brazil alone, an estimated 475 million animals are killed on roads each year. This research could drastically reduce the numbers. How [...]ver notícia