BBC: Brazil boasts of being one of the world’s “greenest” energy suppliers, but recent policy initiatives could jeopardise its desire to be a big player in future climate change discussions. “In the 1970s, Brazil’s energy production was dominated by two sources, wood and oil,” says Maurício Tolmasquim, president of Brazil’s Energy Research Company (EPE). As its economy has expanded, so has its demand for energy, but even now, 46% of Brazil’s energy production is from renewable …