The high cost and limited supply of lower-carbon alternative fuels are the two main barriers preventing their broader adoption.
No single country or company can solve the alternative fuels problem. The aviation industry, fuel companies and others need to work together to develop the technologies involved, and to identify the regulatory and economic conditions to achieve the required scale up.
We are driving investment in alternative fuel technologies to help them become commercially viable. We are, for example, exploring whether small modular nuclear reactors could power plants producing synthetic fuels for use in aviation to decarbonise flight.
Alternative fuels can be a game-changer. Major progress has been made, but we must continue working with urgency to help them fulfil their potential to make a significant contribution to achieving our net zero goals by 2050.