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BBC News: Global Citizen
49 videos
A collection of videos about people trying to make their lives and communities better by solving problems, taking risks and facing down stereotypes and cultural taboos. From their personal stories, we catch a glimpse of what it means to be a global citizen.

BBC Video

Enter the world of the BBC with our specialist channel

BBC News: Why is that?
1
Why Is That?: Life under Antarctic ice 'shouldn't be there'
Researchers hoping to collect mud samples deep beneath an Antarctic ice sheet were amazed to find small creatures living in the dark, freezing water. Experts from the British Antarctic Survey say the discovery of filter-feeding animals clinging to a rock was unexpected, because of the lack of food and sunlight.

BBC News

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2
Why Is That?: Can one of the world’s rarest animals be saved?
The Harlequin toad has been successfully bred in captivity for the first time. The three-year project has been a collaboration between Panama Wildlife Charity PWCC, Manchester Museum, and the Faculty of Medicine, Biology and Heath at The University of Manchester in the UK. This breeding programme could provide a safety net for the toads, which are in danger of extinction, as they could be bred in captivity and reintroduced into the wild.

BBC News

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3
Why Is That?: Are some soaps better than others?
Over the last few months, we’ve been told how important it is to wash our hands regularly – for at least 20 seconds – to protect against coronavirus. But with so many different soaps to choose from, how do we work out what’s best? Dr Michelle Wong, a beauty blogger with a PhD in chemistry, explains why all soaps are effective against coronavirus and suggests ways people with sensitive skin can help prevent irritation.

BBC News

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4
Why Is That?: The robot smaller than the width of a hair
Scientists at Cornell University have created a tiny micro-robot that "walks" using four legs. Invisible to the naked eye, 10 of the computer chip bots could fit within the full-stop at the end of this sentence. Their legs can be independently triggered to bend using laser light. As the laser is toggled back and forth between the front and back legs, the robot walks. It would take less than a week to make a swarm of a million of the robots, which Itai Cohen and Paul McEuen Labs hope could be adapted to become a medical tool. They are small enough to be injected into the body and Prof Cohen hopes eventually robots like these could be designed to hunt down and destroy cancer cells.

BBC News

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5
Why Is That?: Protecting Vietnam's paddy fields
Vietnam is one of the biggest producers and exporters of rice in the world, but the livelihood of some farmers is under threat. Seawater intrusion has long been a problem in the low-lying Mekong Delta, where more than half of the country's rice is grown. During the dry season, the salty water can leach into fields and ruin crops. It's thought rising sea levels may be exacerbating the problem. The International Fund for Agricultural Development (IFAD) and the government of Vietnam have launched a smartphone app, which monitors the saltiness of the water. The data helps rice farmers decide when to flush out the paddy fields with freshwater to protect their crops.

BBC News

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6
Why Is That? Covid vaccine, side effects and why it can’t give you the virus
Coronavirus vaccines help protect people from getting seriously ill if they come into contact with the disease. It's normal to experience some mild side effects, such as a headache or a raised temperature - but a vaccine can't give you the virus. But how do they work? And will a vaccine make you feel unwell? Voice: Marnie Chesterton Video journalist: Jennifer Green Graphics: We Are Covert With thanks to virologist Prof Jonathan Ball, University of Nottingham

BBC News

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7
Why Is That? Is noise pollution killing whales and dolphins?
Humans create a lot of noise in the ocean - from sonar and seismic exploration, to pile driving when building wind farms. But how might this affect sealife? Dr Maria Morell, from University of Veterinary Medicine Hannover, studies the ears of beached dolphins and whales to try and work out if hearing damage led to their death. She’s developed a new way of finding out if a cetacean's hearing was affected just hours before they beached, to support the theory that the two might be connected - and help pinpoint human activities that may be having an impact. Video by Jennifer Green. Interview by Melanie Brown.

BBC News

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8
Why Is That? Space junk map tracks 200 ‘ticking time bombs’
It’s estimated around 26,000 human-made objects orbit earth and the majority of this no longer works. There’s a risk this space debris could collide with functioning satellites that provide vital services – such as GPS and weather warnings. To track and predict its behaviour, Prof Moriba Jah and his colleagues built AstriaGraph – a near real-time map of where each object is located in space. He explains that the system is monitoring around 200 ‘super-spreaders’ – large rocket bodies that have the potential to break into thousands of pieces. Video by Jennifer Green. Interview by Marnie Chesterton and Jennifer Whyntie.

BBC News

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9
Why Is That? How honeybees self-medicate when they get sick
Just like us, honeybees get sick. But they have a clever way of protecting against parasites... Prof Jaap de Roode from Emory University explains how beekeepers could have unintentionally put honeybees at risk by selecting against this self-medicating behaviour.

BBC News

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10
Why Is That? Philippines reef littered with PPE face masks
Personal Protective Equipment (PPE) is washing up on coral reefs close to the Philippine capital, Manila. According to an estimate by the Asian Development Bank, during the peak of the Covid-19 outbreak, the city could have been generating up to 280 tonnes of extra medical waste per day. Environmental groups are warning that the plastic inside face masks is breaking down and being consumed by marine wildlife. They’re urging the Philippine government to improve its handling of infectious waste, to prevent further pollution of the seas. The BBC’s Howard Johnson joined divers from Anilao Scuba Dive Centre, a group affiliated to the United Nations Environment Programme’s Green Fins, which promotes sustainable marine tourism in South East Asia. Video produced by Howard Johnson and Virma Simonette. Additional camera work: Mark Badiola and Jojo D. Lontok.

BBC News

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