Fulcrum BioEnergy says its “sustainable aviation fuel” will divert waste from Chicago-area landfills and reduce airline carbon emissions. But critics say there’s nothing sustainable about it—and even question its viability.
Shell has pulled out of a joint venture with British Airways and Velocys to build a flagship sustainable jet fuels plant in the UK – in a blow to Boris Johnson's claims that Britain could deliver the world's first zero-emission long-haul flight.
