Airlines’ biofuel-powered flights might soon take off

For years, airlines have experimented with biofuels, aiming to reduce both carbon emissions and their reliance on fossil fuels. It’s been a turbulent journey buffeted by inconsistent investment and the periodic lure of cheap oil. But several major carriers are planning larger-scale usage of biofuel in 2019 and 2020, including JetBlue Airways Corp. and Cathay […]