RIO DE JANEIRO, BRAZIL – Rio de Janeiro’s Guanabara Bay is one of the most spectacular places in Brazil. But the expansion of the city, which is home to some 6.7 million people, is threatening the landscape. And the bay’s water is heavily polluted: more than 50% of garbage, toxic chemicals, and sewage are dumped untreated into the Atlantic.
The bay extends over nearly 400 square kilometers and is dotted with . . .