On 29 August 2016, at TICAD 6 held in Nairobi, a small side event focusing on the challenges of solid waste management in Africa was co-organized between the Ministry of Environment of Japan, the Japan International Cooperation Agency (JICA), the United Nations Environment Programme and UN-Habitat. The event was attended by about 50 participants, including representatives from 9 African countries.

On the sidelines of the event, Kiambu County, Kenya, shared its experience of building a landfill using the Fukuoka method. The landfill was built with the support of UN-Habitat and the Fukuoka University team of experts, using locally available materials and working with waste collectors. The Fukuoka method is a semi-aerobic landfill method originally developed in the city of Fukuoka in Japan, which enhances aeration in waste cells, thereby accelerating the waste decomposition process, improving the quality of the leachate water, and inhibiting methane emission.