A sanitation truck removes septic waste from a house in Guediawaye
A sanitation truck removes septic waste from a house in Guediawaye, Senegal, August 19, 2015. In one of the first projects of its kind in Africa, Senegal's government and charitable organisations are installing new toilets that turn waste into compost or break down matter with worms in a bid to lower health risks. Picture taken August 19, 2015. REUTERS/Makini Brice