Heavy rains return to southern Brazil, flooding even higher ground in Porto Alegre / More than half of Brazil is racked by drought. Blame deforestation. / Amid the worst drought in Brazil history, wildfires rage and the Amazon falls to a record low level / Orange juice squeezed by Brazilian drought / After historic floods, Brazil braces for severe drought / Drought in the Brazil's Cerrado is the worst for at least seven centuries, study shows / More heavy rain expected in Brazil's south, where many who remain are poor / Brazil drought: Misery for hundreds of thousands as rains fail