In Nairobi, as much as 90 per cent of the waste is dumped into rivers, creating a public health risk of massive proportions. Kenyan slums have no way of disposing off their filth as they only have two options – the infamous ‘flying toilet’, or spending on toilets which were unhygienic and dirty. This is where Sanergy, a low-cost toilet facility builder, came in. Sanergy worked on a franchise model, giving access to sanitation in the community while also providing employment. Read more here.