In Burundi, researchers are exploring the use of briquettes made from solid waste as a substitute for charcoal to reduce deforestation. They studied the composition of municipal solid waste in Bujumbura and tested briquettes made from a mixture of charcoal residues, grass, sawdust, wood shavings, rice hulls, and sorted waste. The briquettes had a 20% moisture content, 44% ash content, and a high volatile matter of 42%. The fixed carbon content varied between 13% and 26%. The briquettes had a lower calorific value of 11 MJ/kg and contained only trace amounts of pollutants, making them a promising alternative to charcoal for solid fuel.