Kenyan farmers turn cow dung into renewable energy

Kenyan farmer, Josphat Muchiri lights his biogas burner at his coffee plantation in Kiambu county, on August 2. - In Kenya, the leading biogas producer in Africa, the 'poo power' is being used to power everything from cooking stoves to farm equipment, phone chargers and shower heaters. (Photo by TONY KARUMBA / AFP)