In pictures: Nigeria's rubbish scavengers

This is Abdullahi. The 15-year-old has brought a haul of rubbish to sell.

He hopes to make between 40 and 50 Naira ($0.42) for half a day’s scavenging.

In his haul is a single flip-flop.

Decent sandals are cleaned up and re-sold. Shoes that are beyond repair are shredded up and bought by upholsterers for stuffing leather footrests bought by visitors to the Kano tannery nearby.