A five-part, multimedia series on the coming dystopia that is urbanization.
Frontrunner Dilma Rousseff took the lead but no majority, as nation prepares for a runoff.
In Brazil, a tribal chief strikes balance between modern technology and traditional values.
Droughts are growing more severe. Has the world’s largest rain forest reached its tipping point?
In developing countries where the poor go hungry, the upper classes are eating too much.
Police notch a rare victory in war against Rio’s drug gangs after a sweep through city’s slums.
