Reuters: In Brazil's coffee belt, frost has long been the biggest risk for farmers and commodities traders alike. But after years of migrating to warmer regions, farmers here now find themselves scrambling to overcome an unusual phenomenon: blistering heat.
January was the hottest and driest month on record in much of southeastern Brazil, punishing crops in the country's agricultural heartland and sending commodities prices sharply higher in global markets. As signs emerged that the world's largest coffee...