An inventor in suburban Kansas City is trying to market a "latrine deodorizer," 50 years after an unforgettable Boy Scout summer. Although he hasn't sold any of his devices, the National Forest ...

Nyamwaka says a bio-latrine at Kansanga Primary School costs between Shs35m and Shs40m, with the smallest biogas unit of four cubic metres costing about Shs1.5m. ... burning of fossil fuels, ...