By Lise Alves, Senior Contributing Reporter
SÃO PAULO, BRAZIL – Of the more than fourteen million people living in urban areas in the semi-arid region of Brazil, nearly 71 percent, or ten million have no access to sewage systems and throw residues in cesspits, open pits or directly onto rivers and streams, according to a study conducted by the National Institute of the Brazilian Semi-Arid (INSA).
According to the study only 243 cities (21 percent) have sewage systems, but not . . .