Organic Bricks

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.

Sergio has worked since he was eight years old. The teen has already spent half of his short life making bricks in a traditional factory in Alpacoma, a poor area on the outskirts of La Paz.

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.

Sergio has worked since he was eight years old. The teen has already spent half of his short life making bricks in a traditional factory in Alpacoma, a poor area on the outskirts of La Paz.