Opinion, by Alfonso Stefanini
RIO DE JANEIRO, BRAZIL - Even during the most modest rainfalls in Rio, storm sewers overflow and sewage mains burst. Not even "Alerta-Rio", the City Halls environmental warning system loudest conch blow will keep the "dudu" and "kaka" - also two popular nicknames in Brazil - from hitting the ceiling fans in the low-lying sea margin zones throughout the metropolitan area were the majority of the state's population lives.
The Guanabara Bay has . . .