Science News Roundup: South Africans make bricks from human urine

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South Africans make bricks from human urine

South African researchers say they have made bricks using human urine in a natural process involving colonies of bacteria, which could one day help reduce global warming emissions by finding a productive use for the ultimate waste product. The grey bricks are produced in a lab over eight days using urine, calcium, sand and bacteria. Fertilizers are also produced during the processes. And no, the bricks do not smell.