A closer look

In 2023, engineers pulled off what sounds like sci-fi: the first transatlantic flight powered entirely by waste oil and plant fat. The plane looked ordinary but burned Cleaner Jet Fuel (SAF) that cuts emissions by up to 70%. Yet long-term success rides on one snag — supply. Global production meets less than 1% of aviation demand. If every flight switched today, we’d drain the system in days. Still, this proof-of-concept flipped the narrative. The age of flight isn’t ending; it’s transforming its bloodstream. In a decade, 'biofuel' might be as common a boarding-pass term as 'Wi-Fi'.