A Qantas plane powered partly by mustard seeds has become the world’s first biofuel flight between Australia and the United States, after landing in Melbourne on Tuesday. The 15-hour flight used a blended fuel that was 10% derived from the brassica carinata, an industrial type of mustard seed that functions as a fallow crop – meaning it can be grown by farmers in between regular crop cycles. It was a Boeing Dreamliner 787-9 which reduced carbon emissions by 7% compared with the airline’s usual flight over the same LA to Melbourne route.