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The Amazon rainforest could reach a ‘tipping point’ by 2050, according to an international group of scientists. They warn of dire consequences for the world from pressures on the Amazon after computer modelling indicates that up to half of the critical forest cover could be pushed into an irreversible collapse by 2050. Over the past year large swathes of the Amazon have experienced a historic drought. The research, published in the journal Nature, is said to be the most [...]

Scientists say they are worried after finding rock made from plastic debris on a remote island in South America. The discovery was made on Trindade Island, an uninhabited volcanic island off the east coast of Brazil. Experts say that melted plastic has become intertwined with the rocks and that pollution has mainly come from fishing nets. The island isn't inhabited by humans, however the site is an important, protected area for green turtles. What did scientists find? After [...]

Astronomers are puzzled after spotting a rare ring around a mini-planet in our Solar System. The newly discovered dwarf planet, named Quaoar, is around half the size of Pluto and orbits the Sun beyond Neptune. Ring systems are relatively rare in the Solar System and are only thought to be able to survive because they orbit closely to their planet. However, Quaoar's ring seems to be much further away than experts thought possible! What's happened with Quaoar's [...]

Some people are unusually resilient to the coronavirus, so scientists are now searching their genes and blood in the hope of finding the pandemic's Achilles' heel. As a young man, Stephen Crohn could only watch helplessly as one by one, his friends began dying from a disease which had no name. When his partner, a gymnast called Jerry Green, fell desperately ill in 1978 with what we now know as Aids, Crohn simply assumed he was next. But instead as Green became blind and emaciated as [...]

Scientists say they may have discovered why stress makes hair turn white, and a potential way of stopping it happening without reaching for the dye (Readers may find some of the details distressing). In experiments on mice, stem cells that control skin and hair colour became damaged after intense stress. In a chance finding, dark-furred mice turned completely white within weeks. The US and Brazilian researchers said this avenue was worth exploring further to develop a drug that prevents hair [...]

Hace unos años, se le veía como una fuente de biocombustible muy prometedora. Hoy, es una planta de usos múltiples con un potencial comercial que está a punto de despuntar. El coyol (Acrocomia aculeata) ha superado las expectativas de los científicos. "El aceite de coyol, por ejemplo, es muy noble", asegura el biólogo y profesor de la Universidad Federal de Viçosa, Sergio Motoike. "Se puede emplear en la alimentación humana, la oleoquímica y la cosmética, industrias que pagan mucho [...]

A global bioenergy assessment has said biofuels could meet up to a third of the world's transportation fuel needs by the middle of the century.

Construction has begun on a giant observation tower in the heart of the Amazon basin to monitor climate change.