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Why firms are racing to produce green ammonia
In the 19th Century, Europeans realised what the Inca had known long before. Bird droppings, or guano, made a fantastic fertiliser. And so sprung up a gigantic industry dedicated to the harvesting of guano from Latin American bird colonies, where there were huge piles off the stuff.
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Missing US couple on hijacked boat feared killed
A US couple whose boat was hijacked in the Caribbean last week likely died after being thrown into the sea, according to police in Grenada. Ralph Hendry, 66 and his wife Kathy Brandel, 71, both pensioners, have been missing since their catamaran was taken by three men on 19 February.
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Burkina Faso mosque attack: Dozens killed during prayers
Dozens of people have been shot dead at a mosque on the same day that a church was attacked, say the authorities in Burkina Faso. It was during morning prayers that the gunmen surrounded the mosque in Natiaboani town.
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Charity Atlantic rower Michael Holt found dead on boat
Michael Holt from Porthmadog, Gwynedd, left Gran Canaria on 27 January with the goal to reach Barbados in the Caribbean and help two charities. But some 700 miles in, Mr Holt, who had type 1 diabetes, fell ill.
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Mary Poppins film age rating raised over 'discriminatory language'
Mary Poppins, the classic film starring Julie Andrews, has had its age rating raised by British film censors because it features "discriminatory language". The 1964 film has been reclassified from a U, which stands for universal, to a PG, for parental guidance.
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Alexei Navalny: Putin critic about to be freed in prisoner swap when he died, says ally
Alexei Navalny was about to be freed in a prisoner swap when he died, according to his ally Maria Pevchik. She said the Russian opposition leader was going to be exchanged for Vadim Krasikov, a Russian hitman who is serving a life sentence for murder in Germany.
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India ICICI bank: 'My bank manager stole $1.9m from my account'
An Indian woman has accused a manager at one of the country's largest banks of defrauding her by siphoning off 160m rupees ($1.9m; £1.5m) from her account. Shveta Sharma says she had transferred money to the ICICI bank from her US account, expecting it to be invested in fixed deposits.
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Inside the long-abandoned tunnel beneath the Clyde
Deep below the River Clyde lies a once bustling thoroughfare that only a select few are now allowed to enter. Two circular rotunda buildings, one of the them in the shadow of Glasgow's famous Finnieston Crane, mark the exit and entry points for a long-abandoned Victorian tunnel.
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Your pictures on the theme of 'on the horizon'
We asked our readers to send in their best pictures on the theme of "on the horizon". Here is a selection of the photographs we received from around the world. The next theme is "speed" and the deadline for entries is 5 March 2024.
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Japan naked festival: Women join Hadaka Matsuri for first time
The sea of chanting, nearly-naked men tussle, push and shove towards the shrine. "Washoi! Washoi!" they yell - let's go, let's go. It is scene that has barely changed in the 1,250 years the Hadaka Matsuri, or the Naked Festival, has been taking place at the Konomiya Shrine, in central Japan.
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Eight of the world's most remarkable homes
From Jaipur to Whistler, eight extraordinary, award-winning houses that are both beautiful and low-energy. "Passive home" design is all about low-energy building made to exploit passive solar energy and establish a comfortable indoor temperature with a low-energy requirement for heating or cooling.
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Orbital Argument
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Piers Morgan and Oprah Winfrey 'deepfaked' for US influencer's ads
Celebrities including Piers Morgan, Nigella Lawson and Oprah Winfrey have criticised the use of AI deepfake online adverts that gave the false impression they had endorsed a US influencer's controversial self-help course.
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Husband 'made over a million' by eavesdropping on BP wife
The husband of a BP employee has been charged with insider trading in the US following claims he overheard details of calls made by his wife while working from home. The US Securities and Exchange Commission alleged Tyler Loudon made $1.76m (£1.39m) in illegal profits.
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Germany legalises cannabis, but makes it hard to buy
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Tracking down the last survivors of the Bengal famine
The Bengal famine of 1943 killed more than three million people in eastern India. It was one of the worst losses of civilian life on the Allied side in World War Two. There is no memorial, museum, or even a plaque, anywhere in the world to the people who died.
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West Bengal: India court asks for lions’ name change as Hindu sentiments hurt
An Indian court has ordered a zoo in West Bengal state to change the names of two lions after a hardline Hindu group complained it hurt their religious sentiments. The lioness was named after Hindu deity Sita while the lion was called Akbar, after the 16th Century Mughal ruler.
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Intuitive Machines: US company makes historic Moon landing
An American company has made history by becoming the first commercial outfit to put a spacecraft on the Moon. Houston-based Intuitive Machines landed its Odysseus robot near the lunar south pole.
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What if Singularities DO NOT Exist?
Sign Up on Patreon to get access to the Space Time Discord & 10% Off All Merch! https://www.patreon.com/pbsspacetime It's not too often that a giant of physics threatens to overturn an idea held to be self-evident by generations of physicists. Well, that may be the fate of the famous Penrose Singul
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'I'm sad for everyone who's been killed': How two years of war in Ukraine changed Russia
As I stood watching Russians laying flowers in memory of opposition leader Alexei Navalny, a young man shared his reaction to Mr Navalny's death in prison.
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Kelvin Kiptum burial: Widow of Kenya's marathon legend mourns 'joker and hero'
Kelvin Kiptum, the athlete who is being buried on Friday in a small village in western Kenya, is remembered by those who loved him as a joker - as well as a young man with incredible drive, determined to help those who sacrificed so much for him to be able to break the marathon world record last yea
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Alabama IVF ruling: What does it mean for fertility patients?
A ruling from the Alabama Supreme Court that frozen embryos are considered children, and that a person could be held liable for accidentally destroying them, has opened up a new front in the US battle over reproductive medicine.
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Afghanistan: Archaeological sites 'bulldozed for looting'
Dozens of archaeological sites in Afghanistan have been bulldozed to allow systematic looting, according to researchers at Chicago University.
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FBI launches probe into church investigated by BBC
The FBI has launched a probe into a secretive Christian church that was the focus of a recent BBC investigation. The church has no official name but is often referred to as The Truth or the Two by Twos.
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ChatGPT goes temporarily “insane” with unexpected outputs, spooking users
On Tuesday, ChatGPT users began reporting unexpected outputs from OpenAI's AI assistant, flooding the r/ChatGPT Reddit sub with reports of the AI assistant "having a stroke," "going insane," "rambling," and "losing it.
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