The gang's days of playing Robin Hood to locals are over as it shifts its focus to the internaitonal cocaine trade.

It was a sunny September morning in Rio de Janeiro's Parque Arará favela and volunteers were preparing plants to be placed on Reginaldo Gomes da Silva's roof. Students from both the neighborhood ...

Paraisópolis, one of São Paulo’s largest favelas, rises up the hillside in a dense, improvised sprawl. Homes stand shoulder to shoulder, some painted in bright colors, others left in bare brick.

Temps soar in Brazil's summer (from December to March). Low-income favelas would benefit from green roofs but there are two problems: Cost. And a... Cooling green roofs seemed like an impossible dream ...