
U.S. and China Spar for Influence on the Paraguay-ParanĂ¡ River System
A surge of projects along a major South American waterway is attracting geopolitical competition and boosting regional growth.

A Year of Change on the ParanĂ¡ River
Islanders in Argentina’s ParanĂ¡ Delta fight to keep local traditions alive amid environmental and public health emergencies.

A Tale of Our Cities
In an increasingly urban world, the greatest challenges to quality of life will be in the cities. According to the 2007 United Nations Habitat Global Report on Human Settlements, an estimated 1 billion people live in slums—and the figure is growing. In environmental terms alone, the threat posed by our crowded cities is significant. An … Read more