Two excellent signs that African countries are taking on the challenge of waste management in urban areas include, Rwanda’s banned on the use of polyethylene bags in Africa and Ethiopia's recently-built Waste to Energy Plant at Reppie, the largest plant in Africa, which recycles 1,400 tons of waste to generate 30 per cent of energy consumed by households. The collection of solid waste in many African countries is largely performed by private services. In Bamako, Mali, for example, more than 120 microenterprises collect some 300,000 tons annually. In Lusaka, Zambia, 30 per cent of the municipal waste is collected by informal service providers (UN-Habitat, 2010).