Replacing the world’s jet fuel with clean alternatives would require a third of all electricity generated on Earth today – and even that would not be enough to keep flying at current growth rates, experts warned.
Sustainable aviation fuels, known as SAFs, are the most promising technology available to replace fossil kerosene. But, in a new report, engineers and aviation specialists warned that they could not be produced quickly enough or in large enough volumes to keep pace with projected traffic growth.
