Investing in Water a Good Long-Term Bet, Goldman Executive Says

Investing in Water a Good Long-Term Bet, Goldman Executive Says

Dado Galdieri/Bloomberg

Power lines carry electricity generated by Itaipu dam near Foz do Iguacu, Brazil, on Oct. 18, 2012. The dam supplies almost 17 percent of the energy consumed in Brazil and 73 percent of the Paraguayan demand, according to Itaipu Binacional, the dam's operator.