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People Fixing the World
The concrete cleaners
People Fixing the World
Aug 20, 2019

Concrete is the most used man-made product in the world but it comes with a heavy environmental price. Between 5% and 7% of the world's annual carbon emissions come from producing the cement that glues concrete together. Most of these climate-changing gases are released when a vital ingredient, limestone, is melted down in the manufacturing process. But one company has devised a new type of cement that only solidifies when you pump carbon dioxide into it. The gas becomes locked in as it turns to concrete. This is similar to the way carbon dioxide has been stored in rocks by nature over millions of years. As Nick Holland reports, it's one of the solutions the industry could use to mitigate its impact on the environment.

(Photo Credit: BBC)

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Back from the brink: Uganda’s gentle giants

The eco-tourism that is helping to protect mountain gorillas in Uganda.

Myra Anubi is in Uganda visiting the Bwindi Impenetrable Forest. It’s one of the few places that gorillas still exist in the wild, and even better, in recent years their numbers have actually been rising and they are no longer considered critically endangered.

This is partly down to the hard work of Dr Gladys Kalema-Zikusoka and the Conservation Through Public Health organisation. They engage with communities living close to the gorillas, who were often poaching them and destroying their habitat, to help them better understand the animals and tap into the potential for eco-tourism. They also encourage other forms of enterprise, supporting local coffee farmers with training and investment.

Myra meets former poachers now involved in conservation and speaks with local farmers - often women - who look after the coffee plantations. She talks to the village conservation teams involved in protecting the gorillas. And of course, goes into the forest to get a glimpse of these incredible creatures herself.

People Fixing The World from the BBC is about brilliant solutions to the world's problems. We release a new edition every Tuesday. We'd love you to let us know what you think and to hear about your own solutions. You can contact us on WhatsApp by messaging +44 8000 321721 or email [email protected]. And please leave us a review on your chosen podcast provider.

Presenter: Myra Anubi Producer: Richard Kenny Editor: Jon Bithrey Sound mix: Andrew Mills

(Photo: A mountain gorilla in Bwindi Impenetrable Forest. Credit: Richard Kenny)


23min 14sec

The concrete cleaners

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