People Fixing the World Folgen

Fish have favourite colours and dolphins hate high pitched noises. In an effort to save rapidly dwindling global fish stocks, scientists are trying to figure out how to attract the right fish into nets, and keep protected species away. On the southern coast of England, we meet the man who’s designed a hi-frequency gadget which warns dolphins to stay out of fishing nets. In Denmark, scientists show us how LED lights are able to show fish you don’t want the exit from the net. And in Oxford we hear from the researchers using satellite technology to help the Thai government stop criminals from plundering the oceans. Presenter: Myra Anubi Reporter: Rumella Dasgupta Image: The dolphin pinger

Hospitals can make you sicker. It's a strange thought for places that also can make you healthier. But think about the constant noise, the distinctive hospital smell, the bright lights.There's lots of evidence that most patients find hospitals themselves very stressful. This stress can lead to slower healing times or even a higher chance of being readmitted to hospital.This week, we look at some interesting work happening around the world to try to improve the hospital environment.We hear from people who are using nature to heal, are redesigning lighting systems and are blocking out the noise. And by learning what stresses humans out, we can learn a lot about how our bodies recover and heal. Presenter: Myra Anubi Reporter/producer: Charlotte Pritchard

When you get your hair cut, you probably don't think much about what happens to the bits that get chopped off.But it turns out that rather than being dumped in the rubbish, hair can be put to all kinds of uses that can help clean up the planet and feed the people who live on it.We meet a hairdresser who weaves the clippings into mats that get used to soak up oil spills.Plus the young entrepreneur in Tanzania who's worked out how to turn human hair into a powerful crop fertiliser.Presenter: Myra Anubi Reporter: Daniel GordonImage: A man getting his hair cut