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Fish levels fall by 7.2% with as little as 0.1C of warming per decade, northern hemisphere research shows
Chronic ocean heating is fuelling a “staggering and deeply concerning” loss of marine life, a study has found, with fish levels falling by 7.2% from as little as 0.1C of warming per decade.
Researchers examined the year-to-year change of 33,000 populations in the northern hemisphere between 1993 and 2021, and isolated the effect of the decadal rate of seabed warming from short shifts such as marine heatwaves. They found the drop in biomass from chronic heating to be as high as 19.8% in a single year.
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Researchers say solitary bottlenose has adapted well to city waters, but tighter controls on boat traffic and human behaviour are needed
Italian scientists monitoring the movements of a dolphin in the Venice lagoon have said humans are the ones who need managing, rather than wildlife.
Known as Mimmo, the bottlenose dolphin has been spotted on several occasions since it made its first appearance in June last year, prompting a research team from the University of Padova to spring into action.
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UK Climate Change Committee voices concern over Scotland’s progress on decarbonising buildings and reliance on unproved technologies
Scotland has finally produced realistic short-term plans on cutting its climate emissions, but there is “real concern” about the credibility of its overall strategy, the UK’s climate policy watchdog has found.
Nigel Topping, the chair of the UK Climate Change Committee, said there were “flashing amber lights” about the quality and seriousness of some of the Scottish government’s medium- and long-term proposals to reach net zero by 2045.
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Walthamstow Wetlands, London: They’re professional skulkers, loud but highly elusive. And yet there one is, out of the reeds, to be remembered for ever
It’s weather you’d emigrate to avoid. Gloomy and cold – Tupperware sky and drizzle in the air. But tranquil, at least. Small mercies. Walthamstow Wetlands – a 211-hectare nature reserve centred on 10 reservoirs in north-east London. Jewel in the Lee Valley’s crown, and as good a place for waterbirds as any in the capital.
Six tufted ducks drift across – a posse of monochrome floaters on a mission to nowhere. A little grebe – floating powder puff – does its trademark jump-and-dive, surfacing 30 seconds later, 25 yards to the left of where I expected. Extreme peace descends on me. Birdfulness, the best way to be.
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Gene-altering chemicals found in humpback dolphins and finless porpoises, raising alarm they may end up in human food chain
Toxic e-waste chemicals from television, computer and smartphone screens have been found in the brains and bodies of endangered dolphins and porpoises in the South China Sea.
Research published in Environmental Science & Technology detected significant levels of gene-altering liquid crystal monomers (LCMs) in Indo-Pacific humpback dolphins and finless porpoises.
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Thousands more people across Devon and Cornwall could join case against water firm
A group legal claim against South West Water alleging sewage pollution into coastal waters is harming businesses and individuals has been expanded across Devon and Cornwall.
Thousands more individuals could now join the first environmental community group legal action against a water company over the impact of sewage pollution.
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Coalition government agrees to remove parts of controversial law and allow homes to rely on fossil fuels
Germany’s coalition government has been accused of abandoning its climate targets after agreeing to scrap parts of a contentious heating law mandating the use of renewables in favour of a draft law allowing homeowners to rely on fossil fuels.
While the previous law required most newly installed heating systems to use at least 65% renewable energy, often with a heat pump, the amended legislation will allow households to keep using oil and gas.
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Sunrise is a majestic spectacle – but we should be grateful for the miles of vacuum between us and the star
Dawn on a still morning is a majestic spectacle, as sunlight spills silently across the landscape and the Earth gradually emerges from darkness. Sunrise has inspired countless pieces of music striving to express this soundless experience in audible form. But if we could actually hear the sun, it would be deafening.
The sun is a giant nuclear fusion reactor, converting hydrogen into helium and releasing massive amounts of energy in the form of heat – and sound. Sound is essentially vibration and needs a medium to travel through.
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Centuries-old wells restored to provide drinking water as parts of the country head towards “day zero” when no water will be available
A loud cheer and sounds of clapping reverberated around Bansilalpet, a neighbourhood in Hyderabad, when the first trickle of clean water dribbled out of the ground. After an 18-month effort to clear out 3,000 tonnes of rubbish and restore the stone walls and adjacent area, the 17th-century Bansilalpet stepwell had become a source of clean drinking water for the first time in four decades.
“It was such a joyous moment to see water collecting into the stepwell after clearing 40 years of garbage,” says Hajira Adeeb, a 45-year-old resident of Bansilalpet, who grew up seeing the well become transformed from the community’s water source to a dumping ground. “I visit almost every day. The area is clean and lit up in the evenings. I enjoy sitting there.”
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He was at the heart of 1960s counterculture, then paved the way for the libertarian mindset of Silicon Valley. At 87, Brand is still keen to ensure the world is maintained properly – not just today, but for the next 10,000 years
Stewart Brand thinks big and long. He thinks on a planetary scale – as suggested by the title of his celebrated Whole Earth Catalog – and on the longest of timeframes, as with his Long Now Foundation, which looks forward to the next 10,000 years of human civilisation. He has had a lifelong fascination with the future, and anything that could get us there faster, from space travel to psychedelic drugs to computing. In fact, he was arguably the bridge between the San Francisco counterculture of the 60s and present-day Silicon Valley: in his commencement speech at Stanford University in 2005, Steve Jobs eulogised the Whole Earth Catalog and Brand’s philosophy, and echoed its farewell mantra: “Stay hungry. Stay foolish.”
You could say that Brand has also lived big and long. He is now 87 years old, in the final chapters of an eventful and adventurous life that has crossed paths with some of the most consequential events and figures of his era. He has been a writer, an editor, a publisher, a soldier, a photojournalist, an LSD evangelist, an events organiser, a future-planning consultant, even a government adviser (to the California governor Jerry Brown in the late 70s). “There was a time when people asked me, ‘What do you do?’ I said, ‘I find things and I found things,’” says Brand, as in he is a founder. He is speaking from a library where he likes to work in Petaluma, California, not far from his houseboat in Sausalito. “I’m always searching for good stuff to recommend, and good people.”
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Gotovo polovica pacijenata hospitaliziranih zbog akutnog zatajenja srca u Europi ponovno je primljena u bolnicu unutar godine dana, tvrdi nova studija. Rizik od smrti također ostaje visok, posebno za one s više smanjenom funkcijom srca. Zatajenje srca je često stanje koje pogađa više od 64 milijuna ljudi diljem svijeta.
Čak i blagi slučaj COVID-19 ili gripe može utjecati na tijelo dugo nakon što vrućica i kašalj nestanu, tvrdi novo istraživanje koje bi moglo pomoći u objašnjavanju zašto se neki ljudi teško osjećaju potpuno oporavljenima tjednima ili mjesecima kasnije.
Nova studija osvjetljava ponašanje stanica kvasca u crijevima, otvarajući put novim linijama kvasca koje učinkovitije proizvode terapijske lijekove prilagođene liječenju specifičnih bolesti.
Prekomjerna tjelesna težina i pretilost roditelja prije trudnoće povezani su s povećanim rizikom od razvoja masne jetre kod sljedeće generacije, potencijalnog prekursora ciroze jetre i zatajenja jetre, sugerira novo istraživanje.
Rezultati kliničkog ispitivanja provedenog u Australiji pokazali su da dnevna porcija maslaca od kikirikija značajno povećava mišićnu snagu kod starijih osoba. U ispitivanju je sudjelovalo 120 odraslih osoba u dobi od 66 do 89 godina.
Kolorektalni rak jedan je od najčešćih vrsta raka u zapadnom svijetu i vodeći uzrok smrti povezanih s rakom. Dob, prehrana i način života poznati su čimbenici rizika. Međutim, u većini slučajeva još uvijek nije jasno što pokreće bolest. Posljednjih godina znanstvenici su sve više usmjeravali svoju pozornost na ekosustav crijeva – ogromnu zajednicu bakterija, virusa i drugih mikroorganizama koji tamo žive. Sada su danski znanstvenici otkrili prethodno neopisane viruse u uobičajenoj crijevnoj bakteriji te da se virusi češće pojavljuju kod pacijenata s kolorektalnim rakom.
Žene imaju tendenciju da imaju manje plaka koji začepljuje arterije od muškaraca, ali čini se da to ne štiti zdravlje njihovog srca, tvrdi nova studija. Naime, unatoč tome, žene su imale otprilike isti rizik od prerane smrti kao i muškarci. Također su imale jednake šanse da dožive srčani udar ili budu hospitalizirane zbog bolova u prsima.
Pozivanje odraslih na probir za rak debelog crijeva u dobi od 60 godina pomiče dijagnoze u ranije stadije bez smanjenja kratkoročnih stopa smrtnosti, ističući i obećanje i kompromise otkrivanja raka na razini populacije, pokazuju rezultati nove studije.
Tim znanstvenika predvođen University of Waterloo razvija novi alat za liječenje raka inženjeringom gladnih bakterija koje doslovno jedu tumore iznutra prema van. Spore bakterija ulaze u tumor, pronalazeći okruženje u kojem ima puno hranjivih tvari i nema kisika, što ovaj organizam preferira, pa počinje jesti te hranjive tvari i rasti. Ključ pristupa je bakterija znana kao Clostridium sporogenes, koja se obično nalazi u tlu i može rasti samo u okruženjima bez ikakvog kisika.
Braziliski znanstvenici otkrili su da dva lijeka za osteoporozu (etidronat i tiludronat) mogu suzbiti bolesti uzrokovane nakupljanjem željeza u tijelu. U testovima provedenim na ljudskim stanicama, lijekovi su se vezali za višak željeza, smanjili oksidativni stres i spriječili oštećenje stanica.
