SERRO, Minas Gerais — Nature has always been intrinsic to life in Queimadas, a quilombo community located in an environmental buffer zone where the Cerrado and the Atlantic forest meet.

Brazil's government has abolished a vast national reserve in the Amazon to open up the area to mining. The area, covering 46,000 sq km (17,800 sq miles), straddles the northern states of Amapa and ...

Brazil's mining firm Vale has warned that another dam is at risk of bursting months after the collapse of a similar structure killed more than 230 people. The dam near the south-eastern town of ...