People Fixing the World Folgen

Imagine if the meat we ate was all grown in shiny silver vats, with no animals harmed in the process. That’s the vision of start-ups around the world, each trying to perfect lab-grown or cultured meat. It’s a huge challenge in bioengineering to make it work at a cheap enough price. But there are big benefits for the planet if they can pull it off. Presented by Amy Elizabeth Produced by Amy Elizabeth and Tom Colls Image: Lab-grown meat produced by Memphis Meat

Companies are growing light and durable packaging from mycelium that is easy to compost. Another team in Europe is creating a fungal home, which will sense when it’s dark and switch the lights on. And researchers in the UK are developing strains of fungi that won’t just replace plastic, but eat it as well. Produced and presented by Claire BatesPicture: Getty Images

A new kind of solar cell - made by drying a special liquid on a surface - is being heralded as a revolution in solar power. The minerals known as perovskites were discovered more than 150 years ago. More recently, their crystal structure has been copied using other materials and used to produce energy.If it can be made to work, these crystals could be used to literally print out solar cells to put on skyscraper walls, furniture and electrical gadgets. Produced and presented by Tom CollsImage: Olga from Saule Technology