In Africa's largest slum, uncollected waste has long posed an insurmountable health hazard but an ingenuous new energy-generating incineration programme could help contain pollution.
The UN-sponsored project in Kibera -- a sprawling shantytown in Nairobi -- recycles waste to fuel a giant cooker, in this poor neighbourhood where many never have a hot meal or warm water to bathe in.
"It's true that the idea is funny but we saw something that we did not expect," said Debrah Wanjiku, a 23-year-old mother of two as she explained how the "community cooker" works.
Much like others slums around the Kenyan capital and in other African cities, Kibera has no waste collecting services, leaving its estimated one million residents to wade ankle-deep in a thick sludge of rubbish and mud.
A recent study by the United Nations Environment Programme (UNEP) on a waste dump in another Nairobi slum, Korogocho -- reportedly the largest in sub-Saharan Africa -- documented the alarming impact the uncontained waste can have on human health and the environment. It notably recorded levels of toxic cadmium and mercury up to 10 times higher than emergency thresholds in developed countries.
Kibera's community cooker project seeks to offer a low-cost sustainable solution that reduces waste levels, improves residents' food hygiene and diet and preserves the natural habitat.
The project, which could be expanded to other slums on the continent, is the first of its kind, said UNEP, which is headquartered in Nairobi and funded the 10,000 dollars (7,500 euros) needed for the launch.