Pierre Calleja, manager of French firm Fermentalg, who specialises in ichthyology, uses a microscope to check strains of microalgae in his laboratory in Libourne, southwestern France, December 11, 2012. Calleja announced that they have successfully tested a third generation of biofuel, a new fuel developed from microalgae, commonly-known as algae-sourced biofuel or algofuel, on a standard car engine without modification. REUTERS/Regis Duvignau (FRANCE - Tags: ENVIRONMENT ENERGY SCIENCE TECHNOLOGY TRANSPORT BUSINESS) FRANCE-BIOCARBURANT-ALGUES/

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