SAO PAULO, Brazil (AFP) — Unusually powerful sandstorms have left at least six people dead in Sao Paulo in recent weeks, local media said, as southeastern Brazil grapples with severe drought. Scenes of huge orange dust clouds rumbling across the countryside — with winds of up to 100 kilometers (62 miles) an hour — have been seen at least three times since the end of September, terrifying residents in urban and rural areas of Sao […]