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Rubbish littering the streets is a problem all around the world but collecting it can also be a vital source of income. Two projects, thousands of miles apart, are trying to clean up the streets and make life better for rubbish collectors at the same time.
In Nigeria, a start-up called Wecyclers is helping people to profit from their waste, with the help of bicycles, tricycles and an incentives system. In Brazil, a phone app called Cataki is helping connect litter pickers and people with rubbish in an attempt to professionalise these informal recyclers.

Presenter: Tom Colls
Reporters: Amelia Martyn-Hemphill and William Kremer

(Photo: Wecyclers in action in Lagos)