Fidel Castro’s step down after 49 years as Cuba’s leader may have implications for biofuels in the country. Castro was outspokenly critical of U.S. biofuel policy, and blocked a proposed expansion by ag giant Archer Daniels Midland into Cuba in the 1990s. But Fidel’s brother Raul, who will assume leadership of Cuba, is a biofuels supporter. Industry analysts have projected that Cuba has the potential to produce up to 3.2 billion gallons of sugar-cane ethanol per year, and the country recently began overhauling its 17 ethanol refineries. Some see a Brazil — with less internal demand for biofuels, and thus more export capacity — in the making.