EFEPetorca, Chile

Zoila Quiroz, 72, fondly remembers when her hometown, Petorca, in central Chile, was home to a mighty river that gave life to the plants and animals that were the livelihood of thousands of farmers.

But barely half a century later, Petorca, a village at the epicenter of Chile's drought, has drastically changed.

Wells are drying up, crops and livestock are dying, and some 3,000 residents are getting their water from tanker trucks.